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<div class="titlepage"><div><div><h5 class="title">
<a name="spirit.qi.reference.directive.raw"></a><a class="link" href="raw.html" title="Transduction Parsing (raw[])"> Transduction
Parsing (<code class="computeroutput"><span class="identifier">raw</span><span class="special">[]</span></code>)</a>
</h5></div></div></div>
<a name="spirit.qi.reference.directive.raw.description"></a><h6>
<a name="id932705"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.description">Description</a>
</h6>
<p>
The <code class="computeroutput"><span class="identifier">raw</span><span class="special">[]</span></code>
disregards the attribute of its subject parser, instead exposing the
half-open range <code class="computeroutput"><span class="special">[</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">)</span></code> pointing to the matched characters from
the input stream. The <code class="computeroutput"><span class="identifier">raw</span><span class="special">[]</span></code> directive brings back the classic Spirit
transduction (un-attributed) behavior for a subject parser.
</p>
<a name="spirit.qi.reference.directive.raw.header"></a><h6>
<a name="id932766"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.header">Header</a>
</h6>
<pre class="programlisting"><span class="comment">// forwards to <boost/spirit/home/qi/directive/raw.hpp>
</span><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">include</span><span class="special">/</span><span class="identifier">qi_raw</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
</pre>
<p>
Also, see <a class="link" href="../../../structure/include.html" title="Include">Include Structure</a>.
</p>
<a name="spirit.qi.reference.directive.raw.namespace"></a><h6>
<a name="id932840"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.namespace">Namespace</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup><col></colgroup>
<thead><tr><th>
<p>
Name
</p>
</th></tr></thead>
<tbody><tr><td>
<p>
<code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span><span class="special">::</span><span class="identifier">raw</span> <span class="comment">// alias:
boost::spirit::qi::raw</span></code>
</p>
</td></tr></tbody>
</table></div>
<a name="spirit.qi.reference.directive.raw.model_of"></a><h6>
<a name="id932918"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.model_of">Model of</a>
</h6>
<div class="blockquote"><blockquote class="blockquote"><p>
<a class="link" href="../parser_concepts/unaryparser.html" title="UnaryParser"><code class="computeroutput"><span class="identifier">UnaryParser</span></code></a>
</p></blockquote></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><code class="computeroutput"><span class="identifier">a</span></code></span></dt>
<dd><p>
A <a class="link" href="../parser_concepts/parser.html" title="Parser"><code class="computeroutput"><span class="identifier">Parser</span></code></a>.
</p></dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">Iter</span></code></span></dt>
<dd><p>
A <a href="http://www.sgi.com/tech/stl/ForwardIterator.html" target="_top"><code class="computeroutput"><span class="identifier">ForwardIterator</span></code></a> type.
</p></dd>
</dl>
</div>
<a name="spirit.qi.reference.directive.raw.expression_semantics"></a><h6>
<a name="id933013"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.expression_semantics">Expression
Semantics</a>
</h6>
<p>
Semantics of an expression is defined only where it differs from, or
is not defined in <a class="link" href="../parser_concepts/unaryparser.html" title="UnaryParser"><code class="computeroutput"><span class="identifier">UnaryParser</span></code></a>.
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">raw</span><span class="special">[</span><span class="identifier">a</span><span class="special">]</span></code>
</p>
</td>
<td>
<p>
Disregard the attribute of the subject parser, <code class="computeroutput"><span class="identifier">a</span></code>. Expose instead the half-open
range <code class="computeroutput"><span class="special">[</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">)</span></code> pointing to the matched characters
from the input stream.
</p>
</td>
</tr></tbody>
</table></div>
<a name="spirit.qi.reference.directive.raw.attributes"></a><h6>
<a name="id933142"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.attributes">Attributes</a>
</h6>
<p>
See <a class="link" href="../../quick_reference/compound_attribute_rules.html#spirit.qi.quick_reference.compound_attribute_rules.notation">Compound
Attribute Notation</a>.
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Attribute
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">raw</span><span class="special">[</span><span class="identifier">a</span><span class="special">]</span></code>
</p>
</td>
<td>
<p>
</p>
<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">a</span><span class="special">:</span> <span class="identifier">A</span> <span class="special">--></span> <span class="identifier">raw</span><span class="special">[</span><span class="identifier">a</span><span class="special">]:</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_range</span><span class="special"><</span><span class="identifier">Iter</span><span class="special">></span>
<span class="identifier">a</span><span class="special">:</span> <span class="identifier">Unused</span> <span class="special">--></span> <span class="identifier">raw</span><span class="special">[</span><span class="identifier">a</span><span class="special">]:</span> <span class="identifier">Unused</span></pre>
<p>
</p>
</td>
</tr></tbody>
</table></div>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
See <a href="../../../../../../../../libs/range/doc/html/range/utilities/iterator_range.html" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_range</span></code></a>.
</p></td></tr>
</table></div>
<a name="spirit.qi.reference.directive.raw.complexity"></a><h6>
<a name="id933358"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.complexity">Complexity</a>
</h6>
<div class="blockquote"><blockquote class="blockquote"><p>
The complexity is defined by the complexity of the subject parser,
<code class="computeroutput"><span class="identifier">a</span></code>
</p></blockquote></div>
<a name="spirit.qi.reference.directive.raw.example"></a><h6>
<a name="id933385"></a>
<a class="link" href="raw.html#spirit.qi.reference.directive.raw.example">Example</a>
</h6>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
The test harness for the example(s) below is presented in the <a class="link" href="../basics.html#spirit.qi.reference.basics.examples">Basics Examples</a>
section.
</p></td></tr>
</table></div>
<p>
Some using declarations:
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span><span class="special">::</span><span class="identifier">qi</span><span class="special">::</span><span class="identifier">raw</span><span class="special">;</span>
<span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span><span class="special">::</span><span class="identifier">ascii</span><span class="special">::</span><span class="identifier">alpha</span><span class="special">;</span>
<span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span><span class="special">::</span><span class="identifier">ascii</span><span class="special">::</span><span class="identifier">alnum</span><span class="special">;</span>
</pre>
<p>
</p>
<p>
This parser matches and extracts C++ identifiers:
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">id</span><span class="special">;</span>
<span class="identifier">test_parser_attr</span><span class="special">(</span><span class="string">"James007"</span><span class="special">,</span> <span class="identifier">raw</span><span class="special">[(</span><span class="identifier">alpha</span> <span class="special">|</span> <span class="char">'_'</span><span class="special">)</span> <span class="special">>></span> <span class="special">*(</span><span class="identifier">alnum</span> <span class="special">|</span> <span class="char">'_'</span><span class="special">)],</span> <span class="identifier">id</span><span class="special">);</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">id</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> <span class="comment">// should print James007
</span></pre>
<p>
</p>
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<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>)
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