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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
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<a name="boost_regex.format"></a><a href="format.html" title="Search and Replace Format String Syntax"> Search and Replace Format String Syntax</a>
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</h2></div></div></div>
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<div class="toc"><dl>
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<dt><span class="section"><a href="format/sed_format.html"> Sed Format String Syntax</a></span></dt>
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<dt><span class="section"><a href="format/perl_format.html"> Perl Format String Syntax</a></span></dt>
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<dt><span class="section"><a href="format/boost_format_syntax.html"> Boost-Extended
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Format String Syntax</a></span></dt>
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Format strings are used by the algorithm <a href="ref/regex_replace.html" title="regex_replace"><code class="computeroutput"><span class="identifier">regex_replace</span></code></a> and by <a href="ref/match_results.html#boost_regex.match_results_format"><code class="computeroutput"><span class="identifier">match_results</span><span class="special"><>::</span><span class="identifier">format</span></code></a>, and are used to transform
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one string into another.
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There are three kind of format string: <a href="format/sed_format.html" title="Sed Format String Syntax">Sed</a>,
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<a href="format/perl_format.html" title="Perl Format String Syntax">Perl</a> and <a href="format/boost_format_syntax.html" title="Boost-Extended Format String Syntax">Boost-Extended</a>.
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Alternatively, when the flag <code class="computeroutput"><span class="identifier">format_literal</span></code>
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is passed to one of these functions, then the format string is treated as a
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string literal, and is copied unchanged to the output.
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<td align="right"><div class="copyright-footer">Copyright <20> 1998 -2007 John Maddock<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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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