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<div class="refentry" title="Function regex_replace">
<a name="boost.xpressive.regex_replace"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Function regex_replace</span></h2>
<p>boost::xpressive::regex_replace — Build an output sequence given an input sequence, a regex, and a format string or a formatter object, function, or expression. </p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="emphasis"><em>// In header: <<a class="link" href="../../xpressive/reference.html#header.boost.xpressive.regex_algorithms_hpp" title="Header <boost/xpressive/regex_algorithms.hpp>">boost/xpressive/regex_algorithms.hpp</a>>
</em></span>
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> OutIter, <span class="bold"><strong>typename</strong></span> BidiIter, <span class="bold"><strong>typename</strong></span> Formatter>
<span class="type">OutIter</span> regex_replace(OutIter out, BidiIter begin, BidiIter end,
<a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< BidiIter > <span class="bold"><strong>const</strong></span> & re,
Formatter <span class="bold"><strong>const</strong></span> & format,
regex_constants::match_flag_type flags = regex_constants::match_default,
<span class="emphasis"><em>unspecified</em></span> = 0);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> OutIter, <span class="bold"><strong>typename</strong></span> BidiIter>
<span class="type">OutIter</span> regex_replace(OutIter out, BidiIter begin, BidiIter end,
<a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< BidiIter > <span class="bold"><strong>const</strong></span> & re,
<span class="bold"><strong>typename</strong></span> iterator_value< BidiIter >::type <span class="bold"><strong>const</strong></span> * format,
regex_constants::match_flag_type flags = regex_constants::match_default);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> BidiContainer, <span class="bold"><strong>typename</strong></span> BidiIter, <span class="bold"><strong>typename</strong></span> Formatter>
<span class="type">BidiContainer</span>
regex_replace(BidiContainer & str, <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< BidiIter > <span class="bold"><strong>const</strong></span> & re,
Formatter <span class="bold"><strong>const</strong></span> & format,
regex_constants::match_flag_type flags = regex_constants::match_default,
<span class="emphasis"><em>unspecified</em></span> = 0);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> BidiContainer, <span class="bold"><strong>typename</strong></span> BidiIter, <span class="bold"><strong>typename</strong></span> Formatter>
<span class="type">BidiContainer</span>
regex_replace(BidiContainer <span class="bold"><strong>const</strong></span> & str, <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< BidiIter > <span class="bold"><strong>const</strong></span> & re,
Formatter <span class="bold"><strong>const</strong></span> & format,
regex_constants::match_flag_type flags = regex_constants::match_default,
<span class="emphasis"><em>unspecified</em></span> = 0);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> Char, <span class="bold"><strong>typename</strong></span> Formatter>
<span class="type">std::basic_string< <span class="bold"><strong>typename</strong></span> remove_const< Char >::type ></span>
regex_replace(Char * str, <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< Char * > <span class="bold"><strong>const</strong></span> & re,
Formatter <span class="bold"><strong>const</strong></span> & format,
regex_constants::match_flag_type flags = regex_constants::match_default,
<span class="emphasis"><em>unspecified</em></span> = 0);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> BidiContainer, <span class="bold"><strong>typename</strong></span> BidiIter>
<span class="type">BidiContainer</span>
regex_replace(BidiContainer & str, <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< BidiIter > <span class="bold"><strong>const</strong></span> & re,
<span class="bold"><strong>typename</strong></span> iterator_value< BidiIter >::type <span class="bold"><strong>const</strong></span> * format,
regex_constants::match_flag_type flags = regex_constants::match_default,
<span class="emphasis"><em>unspecified</em></span> = 0);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> BidiContainer, <span class="bold"><strong>typename</strong></span> BidiIter>
<span class="type">BidiContainer</span>
regex_replace(BidiContainer <span class="bold"><strong>const</strong></span> & str, <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< BidiIter > <span class="bold"><strong>const</strong></span> & re,
<span class="bold"><strong>typename</strong></span> iterator_value< BidiIter >::type <span class="bold"><strong>const</strong></span> * format,
regex_constants::match_flag_type flags = regex_constants::match_default,
<span class="emphasis"><em>unspecified</em></span> = 0);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> Char>
<span class="type">std::basic_string< <span class="bold"><strong>typename</strong></span> remove_const< Char >::type ></span>
regex_replace(Char * str, <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a>< Char * > <span class="bold"><strong>const</strong></span> & re,
<span class="bold"><strong>typename</strong></span> add_const< Char >::type * format,
regex_constants::match_flag_type flags = regex_constants::match_default);</pre></div>
<div class="refsect1" title="Description">
<a name="id2116943"></a><h2>Description</h2>
<p>Constructs a <code class="computeroutput">regex_iterator</code> object: <code class="computeroutput">regex_iterator< BidiIter > i(begin, end, re, flags)</code>, and uses <code class="computeroutput">i</code> to enumerate through all of the matches m of type <code class="computeroutput">match_results< BidiIter ></code> that occur within the sequence <code class="computeroutput">[begin, end)</code>. If no such matches are found and <code class="computeroutput">!(flags & format_no_copy)</code> then calls <code class="computeroutput">std::copy(begin, end, out)</code>. Otherwise, for each match found, if <code class="computeroutput">!(flags & format_no_copy)</code> calls <code class="computeroutput">std::copy(m.prefix().first, m.prefix().second, out)</code>, and then calls <code class="computeroutput">m.format(out, format, flags)</code>. Finally if <code class="computeroutput">!(flags & format_no_copy)</code> calls <code class="computeroutput">std::copy(last_m.suffix().first, last_m.suffix().second, out)</code> where <code class="computeroutput">last_m</code> is a copy of the last match found.</p>
<p>If <code class="computeroutput">flags & format_first_only</code> is non-zero then only the first match found is replaced.</p>
<p>
</p>
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<td><p><span class="term">Parameters:</span></p></td>
<td><div class="variablelist"><table border="0">
<col align="left" valign="top">
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<td><p><span class="term"><code class="computeroutput">begin</code></span></p></td>
<td><p>The beginning of the input sequence. </p></td>
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<td><p><span class="term"><code class="computeroutput">end</code></span></p></td>
<td><p>The end of the input sequence. </p></td>
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<tr>
<td><p><span class="term"><code class="computeroutput">flags</code></span></p></td>
<td><p>Optional match flags, used to control how the expression is matched against the sequence. (See <code class="computeroutput">match_flag_type</code>.) </p></td>
</tr>
<tr>
<td><p><span class="term"><code class="computeroutput">format</code></span></p></td>
<td><p>The format string used to format the replacement sequence, or a formatter function, function object, or expression. </p></td>
</tr>
<tr>
<td><p><span class="term"><code class="computeroutput">out</code></span></p></td>
<td><p>An output iterator into which the output sequence is written. </p></td>
</tr>
<tr>
<td><p><span class="term"><code class="computeroutput">re</code></span></p></td>
<td><p>The regular expression object to use. </p></td>
</tr>
</tbody>
</table></div></td>
</tr>
<tr>
<td><p><span class="term">Requires:</span></p></td>
<td>
<p>Type <code class="computeroutput">BidiIter</code> meets the requirements of a Bidirectional Iterator (24.1.4). </p>
<p>Type <code class="computeroutput">OutIter</code> meets the requirements of an Output Iterator (24.1.2). </p>
<p>Type <code class="computeroutput">Formatter</code> models <code class="computeroutput">ForwardRange</code>, <code class="computeroutput">Callable<match_results<BidiIter> ></code>, <code class="computeroutput">Callable<match_results<BidiIter>, OutIter></code>, or <code class="computeroutput">Callable<match_results<BidiIter>, OutIter, regex_constants::match_flag_type></code>; or else it is a null-terminated format string, or an expression template representing a formatter lambda expression. </p>
<p><code class="computeroutput">[begin,end)</code> denotes a valid iterator range. </p>
</td>
</tr>
<tr>
<td><p><span class="term">Returns:</span></p></td>
<td><p>The value of the output iterator after the output sequence has been written to it. </p></td>
</tr>
<tr>
<td><p><span class="term">Throws:</span></p></td>
<td>
<a class="link" href="regex_error.html" title="Struct regex_error">regex_error</a> </td>
</tr>
</tbody>
</table></div>
</div>
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<td align="right"><div class="copyright-footer">Copyright © 2007 Eric Niebler<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>
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