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<a name="boost.date_time.special_values_parser"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle">Class template special_values_parser</span></h2>
<p>boost::date_time::special_values_parser &#8212; Class for special_value parsing. </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="comment">// In header: &lt;<a class="link" href="../../date_time/doxy.html#header.boost.date_time.special_values_parser_hpp" title="Header &lt;boost/date_time/special_values_parser.hpp&gt;">boost/date_time/special_values_parser.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> date_type<span class="special">,</span> <span class="keyword">typename</span> charT<span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="special_values_parser.html" title="Class template special_values_parser">special_values_parser</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">charT</span> <span class="special">&gt;</span>                <a name="boost.date_time.special_values_parser.string_type"></a><span class="identifier">string_type</span><span class="special">;</span>    
  <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">istreambuf_iterator</span><span class="special">&lt;</span> <span class="identifier">charT</span> <span class="special">&gt;</span>         <a name="boost.date_time.special_values_parser.stream_itr_type"></a><span class="identifier">stream_itr_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> <span class="identifier">date_type</span><span class="special">::</span><span class="identifier">duration_type</span>                  <a name="boost.date_time.special_values_parser.duration_type"></a><span class="identifier">duration_type</span><span class="special">;</span>  
  <span class="keyword">typedef</span> <a class="link" href="string_parse_tree.html" title="Struct template string_parse_tree">string_parse_tree</a><span class="special">&lt;</span> <span class="identifier">charT</span> <span class="special">&gt;</span>                <a name="boost.date_time.special_values_parser.parse_tree_type"></a><span class="identifier">parse_tree_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> parse_tree_type::parse_match_result_type  <a name="boost.date_time.special_values_parser.match_results"></a><span class="identifier">match_results</span><span class="special">;</span>  
  <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">charT</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <a name="boost.date_time.special_values_parser.collection_type"></a><span class="identifier">collection_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> <span class="identifier">charT</span>                                     <a name="boost.date_time.special_values_parser.char_type"></a><span class="identifier">char_type</span><span class="special">;</span>      

  <span class="comment">// <a class="link" href="special_values_parser.html#boost.date_time.special_values_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
  <a class="link" href="special_values_parser.html#idm45507093061088-bb"><span class="identifier">special_values_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="special_values_parser.html#idm45507093059760-bb"><span class="identifier">special_values_parser</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> 
                        <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> 
                        <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="special_values_parser.html#idm45507160492176-bb"><span class="identifier">special_values_parser</span></a><span class="special">(</span><span class="keyword">typename</span> <span class="identifier">collection_type</span><span class="special">::</span><span class="identifier">iterator</span><span class="special">,</span> 
                        <span class="keyword">typename</span> <span class="identifier">collection_type</span><span class="special">::</span><span class="identifier">iterator</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="special_values_parser.html#idm45507094118784-bb"><span class="identifier">special_values_parser</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="special_values_parser.html" title="Class template special_values_parser">special_values_parser</a><span class="special">&lt;</span> <span class="identifier">date_type</span><span class="special">,</span> <span class="identifier">charT</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="special_values_parser.html#idm45507095690384-bb">public member functions</a></span>
  <span class="keyword">void</span> <a class="link" href="special_values_parser.html#idm45507095689824-bb"><span class="identifier">sv_strings</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="special_values_parser.html#idm45507165880624-bb"><span class="identifier">match</span></a><span class="special">(</span><span class="identifier">stream_itr_type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">stream_itr_type</span> <span class="special">&amp;</span><span class="special">,</span> <a class="link" href="special_values_parser.html#boost.date_time.special_values_parser.match_results">match_results</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>

  <span class="comment">// public data members</span>
  <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">char_type</span> <span class="identifier">nadt_string</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">char_type</span> <span class="identifier">neg_inf_string</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">char_type</span> <span class="identifier">pos_inf_string</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">char_type</span> <span class="identifier">min_date_time_string</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">char_type</span> <span class="identifier">max_date_time_string</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idm45555366140224"></a><h2>Description</h2>
<p>TODO: add doc-comments for which elements can be changed Parses input stream for strings representing special_values. Special values parsed are:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>not_a_date_time</p></li>
<li class="listitem"><p>neg_infin</p></li>
<li class="listitem"><p>pod_infin</p></li>
<li class="listitem"><p>min_date_time</p></li>
<li class="listitem"><p>max_date_time </p></li>
</ul></div>
<p>
</p>
<div class="refsect2">
<a name="idm45555366136928"></a><h3>
<a name="boost.date_time.special_values_parserconstruct-copy-destruct"></a><code class="computeroutput">special_values_parser</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="idm45507093061088-bb"></a><span class="identifier">special_values_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Creates a <code class="computeroutput"><a class="link" href="special_values_parser.html" title="Class template special_values_parser">special_values_parser</a></code> with the default set of "sv_strings". </li>
<li class="listitem">
<pre class="literallayout"><a name="idm45507093059760-bb"></a><span class="identifier">special_values_parser</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> nadt_str<span class="special">,</span> 
                      <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> neg_inf_str<span class="special">,</span> 
                      <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> pos_inf_str<span class="special">,</span> 
                      <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> min_dt_str<span class="special">,</span> 
                      <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> max_dt_str<span class="special">)</span><span class="special">;</span></pre>Creates a <code class="computeroutput"><a class="link" href="special_values_parser.html" title="Class template special_values_parser">special_values_parser</a></code> using a user defined set of element strings. </li>
<li class="listitem"><pre class="literallayout"><a name="idm45507160492176-bb"></a><span class="identifier">special_values_parser</span><span class="special">(</span><span class="keyword">typename</span> <span class="identifier">collection_type</span><span class="special">::</span><span class="identifier">iterator</span> beg<span class="special">,</span> 
                      <span class="keyword">typename</span> <span class="identifier">collection_type</span><span class="special">::</span><span class="identifier">iterator</span> end<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><a name="idm45507094118784-bb"></a><span class="identifier">special_values_parser</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="special_values_parser.html" title="Class template special_values_parser">special_values_parser</a><span class="special">&lt;</span> <span class="identifier">date_type</span><span class="special">,</span> <span class="identifier">charT</span> <span class="special">&gt;</span> <span class="special">&amp;</span> svp<span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="idm45555366093200"></a><h3>
<a name="idm45507095690384-bb"></a><code class="computeroutput">special_values_parser</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm45507095689824-bb"></a><span class="identifier">sv_strings</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> nadt_str<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> neg_inf_str<span class="special">,</span> 
                <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> pos_inf_str<span class="special">,</span> 
                <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> min_dt_str<span class="special">,</span> 
                <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> max_dt_str<span class="special">)</span><span class="special">;</span></pre>Replace special value strings. </li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> <a name="idm45507165880624-bb"></a><span class="identifier">match</span><span class="special">(</span><span class="identifier">stream_itr_type</span> <span class="special">&amp;</span> sitr<span class="special">,</span> <span class="identifier">stream_itr_type</span> <span class="special">&amp;</span> str_end<span class="special">,</span> 
           <a class="link" href="special_values_parser.html#boost.date_time.special_values_parser.match_results">match_results</a> <span class="special">&amp;</span> mr<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Sets match_results.current_match to the corresponding special_value or -1. </li>
</ol></div>
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