Merge regex changes from Trunk.

[SVN r76192]
This commit is contained in:
John Maddock
2011-12-26 18:28:30 +00:00
parent e0fe0863ad
commit 090520dbb4
47 changed files with 1551 additions and 1524 deletions

View File

@ -26,7 +26,7 @@
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_regex.ref.regex_search"></a><a class="link" href="regex_search.html" title="regex_search">regex_search</a>
</h3></div></div></div>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">regex</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">regex</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<p>
The algorithm <a class="link" href="regex_search.html" title="regex_search"><code class="computeroutput"><span class="identifier">regex_search</span></code></a> will search a range
@ -35,46 +35,46 @@
for a match if a match could conceivably start at that position. The algorithm
is defined as follows:
</p>
<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">BidirectionalIterator</span><span class="special">,</span>
<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">BidirectionalIterator</span><span class="special">,</span>
<span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidirectionalIterator</span> <span class="identifier">first</span><span class="special">,</span> <span class="identifier">BidirectionalIterator</span> <span class="identifier">last</span><span class="special">,</span>
<span class="identifier">match_results</span><span class="special">&lt;</span><span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">&gt;&amp;</span> <span class="identifier">m</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">ST</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">SA</span><span class="special">,</span>
<span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">ST</span><span class="special">,</span> <span class="identifier">SA</span><span class="special">&gt;&amp;</span> <span class="identifier">s</span><span class="special">,</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">ST</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">SA</span><span class="special">,</span>
<span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">ST</span><span class="special">,</span> <span class="identifier">SA</span><span class="special">&gt;&amp;</span> <span class="identifier">s</span><span class="special">,</span>
<span class="identifier">match_results</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">ST</span><span class="special">,</span><span class="identifier">SA</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span><span class="special">,</span>
<span class="identifier">Allocator</span><span class="special">&gt;&amp;</span> <span class="identifier">m</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">,</span>
<span class="identifier">match_results</span><span class="special">&lt;</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*,</span> <span class="identifier">Allocator</span><span class="special">&gt;&amp;</span> <span class="identifier">m</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">ST</span><span class="special">,</span><span class="identifier">SA</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span><span class="special">,</span>
<span class="identifier">Allocator</span><span class="special">&gt;&amp;</span> <span class="identifier">m</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidirectionalIterator</span> <span class="identifier">first</span><span class="special">,</span> <span class="identifier">BidirectionalIterator</span> <span class="identifier">last</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">,</span>
<span class="identifier">match_results</span><span class="special">&lt;</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*,</span> <span class="identifier">Allocator</span><span class="special">&gt;&amp;</span> <span class="identifier">m</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidirectionalIterator</span> <span class="identifier">first</span><span class="special">,</span> <span class="identifier">BidirectionalIterator</span> <span class="identifier">last</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">ST</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">SA</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">ST</span><span class="special">,</span> <span class="identifier">SA</span><span class="special">&gt;&amp;</span> <span class="identifier">s</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">&gt;&amp;</span> <span class="identifier">e</span><span class="special">,</span>
<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
</pre>
<a name="boost_regex.ref.regex_search.description"></a><h5>
<a name="boost_regex.ref.regex_search.description-heading"></a>
<a class="link" href="regex_search.html#boost_regex.ref.regex_search.description">Description</a>
<h5>
<a name="boost_regex.ref.regex_search.h0"></a>
<span><a name="boost_regex.ref.regex_search.description"></a></span><a class="link" href="regex_search.html#boost_regex.ref.regex_search.description">Description</a>
</h5>
<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidirectionalIterator</span> <span class="identifier">first</span><span class="special">,</span> <span class="identifier">BidirectionalIterator</span> <span class="identifier">last</span><span class="special">,</span>
@ -356,9 +356,9 @@
<p>
<span class="bold"><strong>Effects</strong></span>: Returns the result of <code class="computeroutput"><span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">s</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">s</span><span class="special">.</span><span class="identifier">end</span><span class="special">(),</span> <span class="identifier">e</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">)</span></code>.
</p>
<a name="boost_regex.ref.regex_search.examples"></a><h5>
<a name="boost_regex.ref.regex_search.examples-heading"></a>
<a class="link" href="regex_search.html#boost_regex.ref.regex_search.examples">Examples</a>
<h5>
<a name="boost_regex.ref.regex_search.h1"></a>
<span><a name="boost_regex.ref.regex_search.examples"></a></span><a class="link" href="regex_search.html#boost_regex.ref.regex_search.examples">Examples</a>
</h5>
<p>
The following example, takes the contents of a file in the form of a string,
@ -367,45 +367,45 @@
is implemented, for example it could easily be modified to work with the
SGI rope class, which uses a non-contiguous storage strategy.
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">string</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">map</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">regex</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">string</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">map</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">regex</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="comment">// purpose: </span>
<span class="comment">// takes the contents of a file in the form of a string </span>
<span class="comment">// and searches for all the C++ class definitions, storing </span>
<span class="comment">// their locations in a map of strings/int's </span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">map_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">map_type</span><span class="special">;</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">expression</span><span class="special">(</span>
<span class="string">"^(template[[:space:]]*&lt;[^;:{]+&gt;[[:space:]]*)?"</span>
<span class="string">"(class|struct)[[:space:]]*"</span>
<span class="string">"(\\&lt;\\w+\\&gt;([[:blank:]]*\\([^)]*\\))?"</span>
<span class="string">"[[:space:]]*)*(\\&lt;\\w*\\&gt;)[[:space:]]*"</span>
<span class="string">"(&lt;[^;:{]+&gt;[[:space:]]*)?(\\{|:[^;\\{()]*\\{)"</span><span class="special">);</span>
<span class="string">"(&lt;[^;:{]+&gt;[[:space:]]*)?(\\{|:[^;\\{()]*\\{)"</span><span class="special">);</span>
<span class="keyword">void</span> <span class="identifier">IndexClasses</span><span class="special">(</span><span class="identifier">map_type</span><span class="special">&amp;</span> <span class="identifier">m</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;</span> <span class="identifier">file</span><span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">::</span><span class="identifier">const_iterator</span> <span class="identifier">start</span><span class="special">,</span> <span class="identifier">end</span><span class="special">;</span>
<span class="identifier">start</span> <span class="special">=</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span>
<span class="identifier">end</span> <span class="special">=</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_results</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">::</span><span class="identifier">const_iterator</span><span class="special">&gt;</span> <span class="identifier">what</span><span class="special">;</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">;</span>
<span class="keyword">while</span><span class="special">(</span><span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">start</span><span class="special">,</span> <span class="identifier">end</span><span class="special">,</span> <span class="identifier">what</span><span class="special">,</span> <span class="identifier">expression</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">))</span>
<span class="special">{</span>
<span class="keyword">void</span> <span class="identifier">IndexClasses</span><span class="special">(</span><span class="identifier">map_type</span><span class="special">&amp;</span> <span class="identifier">m</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;</span> <span class="identifier">file</span><span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">::</span><span class="identifier">const_iterator</span> <span class="identifier">start</span><span class="special">,</span> <span class="identifier">end</span><span class="special">;</span>
<span class="identifier">start</span> <span class="special">=</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span>
<span class="identifier">end</span> <span class="special">=</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_results</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">::</span><span class="identifier">const_iterator</span><span class="special">&gt;</span> <span class="identifier">what</span><span class="special">;</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">;</span>
<span class="keyword">while</span><span class="special">(</span><span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">start</span><span class="special">,</span> <span class="identifier">end</span><span class="special">,</span> <span class="identifier">what</span><span class="special">,</span> <span class="identifier">expression</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">))</span>
<span class="special">{</span>
<span class="comment">// what[0] contains the whole string </span>
<span class="comment">// what[5] contains the class name. </span>
<span class="comment">// what[6] contains the template specialisation if any. </span>
<span class="comment">// add class name and position to map: </span>
<span class="identifier">m</span><span class="special">[</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="identifier">what</span><span class="special">[</span><span class="number">5</span><span class="special">].</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">what</span><span class="special">[</span><span class="number">5</span><span class="special">].</span><span class="identifier">second</span><span class="special">)</span>
<span class="special">+</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="identifier">what</span><span class="special">[</span><span class="number">6</span><span class="special">].</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">what</span><span class="special">[</span><span class="number">6</span><span class="special">].</span><span class="identifier">second</span><span class="special">)]</span>
<span class="special">=</span> <span class="identifier">what</span><span class="special">[</span><span class="number">5</span><span class="special">].</span><span class="identifier">first</span> <span class="special">-</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span>
<span class="identifier">m</span><span class="special">[</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="identifier">what</span><span class="special">[</span><span class="number">5</span><span class="special">].</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">what</span><span class="special">[</span><span class="number">5</span><span class="special">].</span><span class="identifier">second</span><span class="special">)</span>
<span class="special">+</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="identifier">what</span><span class="special">[</span><span class="number">6</span><span class="special">].</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">what</span><span class="special">[</span><span class="number">6</span><span class="special">].</span><span class="identifier">second</span><span class="special">)]</span>
<span class="special">=</span> <span class="identifier">what</span><span class="special">[</span><span class="number">5</span><span class="special">].</span><span class="identifier">first</span> <span class="special">-</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span>
<span class="comment">// update search position: </span>
<span class="identifier">start</span> <span class="special">=</span> <span class="identifier">what</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">second</span><span class="special">;</span>
<span class="identifier">start</span> <span class="special">=</span> <span class="identifier">what</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">second</span><span class="special">;</span>
<span class="comment">// update flags: </span>
<span class="identifier">flags</span> <span class="special">|=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_prev_avail</span><span class="special">;</span>
<span class="identifier">flags</span> <span class="special">|=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_not_bob</span><span class="special">;</span>
<span class="special">}</span>
<span class="identifier">flags</span> <span class="special">|=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_prev_avail</span><span class="special">;</span>
<span class="identifier">flags</span> <span class="special">|=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_not_bob</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">}</span>
</pre>
</div>