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<title>syntax_option_type Synopsis</title>
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<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.ref.syntax_option_type.syntax_option_type_synopsis"></a><a class="link" href="syntax_option_type_synopsis.html" title="syntax_option_type Synopsis">syntax_option_type
        Synopsis</a>
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<p>
          Type <a class="link" href="../syntax_option_type.html" title="syntax_option_type"><code class="computeroutput"><span class="identifier">syntax_option_type</span></code></a>
          is an implementation specific bitmask type that controls how a regular
          expression string is to be interpreted. For convenience note that all the
          constants listed here, are also duplicated within the scope of class template
          <a class="link" href="../basic_regex.html" title="basic_regex"><code class="computeroutput"><span class="identifier">basic_regex</span></code></a>.
        </p>
<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">std</span><span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">regex_constants</span><span class="special">{</span>

<span class="keyword">typedef</span> <span class="identifier">implementation</span><span class="special">-</span><span class="identifier">specific</span><span class="special">-</span><span class="identifier">bitmask</span><span class="special">-</span><span class="identifier">type</span> <span class="identifier">syntax_option_type</span><span class="special">;</span>

<span class="comment">// these flags are standardized:</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">normal</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">ECMAScript</span> <span class="special">=</span> <span class="identifier">normal</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">JavaScript</span> <span class="special">=</span> <span class="identifier">normal</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">JScript</span> <span class="special">=</span> <span class="identifier">normal</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">perl</span> <span class="special">=</span> <span class="identifier">normal</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">basic</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">sed</span> <span class="special">=</span> <span class="identifier">basic</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">extended</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">awk</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">grep</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">egrep</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">icase</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">nosubs</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">optimize</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">collate</span><span class="special">;</span>

<span class="comment">// </span>
<span class="comment">// The remaining options are specific to Boost.Regex:</span>
<span class="comment">//</span>

<span class="comment">// Options common to both Perl and POSIX regular expressions:</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">newline_alt</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_except</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span>  <span class="identifier">save_subexpression_location</span><span class="special">;</span>

<span class="comment">// Perl specific options:</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_mod_m</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_mod_s</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">mod_s</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">mod_x</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_empty_expressions</span><span class="special">;</span>

<span class="comment">// POSIX extended specific options:</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_escape_in_lists</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_bk_refs</span><span class="special">;</span>

<span class="comment">// POSIX basic specific options:</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_escape_in_lists</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_char_classes</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">no_intervals</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">bk_plus_qm</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">syntax_option_type</span> <span class="identifier">bk_vbar</span><span class="special">;</span>

<span class="special">}</span> <span class="comment">// namespace regex_constants</span>
<span class="special">}</span> <span class="comment">// namespace std</span>
</pre>
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<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2013 John Maddock<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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