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Add checked constructors to the Unicode iterators that need them.
Update icu support code to use the new checking-constructors. Update tests to check the full Unicode character range (as of Unicode V6). Add minimal docs describing the iterators. [SVN r73271]
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="boost_regex.ref.match_results"></a><a class="link" href="match_results.html" title="match_results">match_results</a>
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</h3></div></div></div>
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<a name="boost_regex.ref.match_results.synopsis"></a><h5>
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<a name="id1027364"></a>
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<a name="boost_regex.ref.match_results.synopsis-heading"></a>
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<a class="link" href="match_results.html#boost_regex.ref.match_results.synopsis">Synopsis</a>
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</h5>
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<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</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">></span>
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@ -86,18 +86,18 @@
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<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">iterator_traits</span><span class="special"><</span><span class="identifier">BidirectionalIterator</span><span class="special">>::</span><span class="identifier">value_type</span> <span class="identifier">char_type</span><span class="special">;</span>
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<span class="keyword">typedef</span> <span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">char_type</span><span class="special">></span> <span class="identifier">string_type</span><span class="special">;</span>
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<span class="comment">// construct/copy/destroy:
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</span> <a class="link" href="match_results.html#boost_regex.match_results.construct">explicit match_results</a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span><span class="special">&</span> <span class="identifier">a</span> <span class="special">=</span> <span class="identifier">Allocator</span><span class="special">());</span>
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<span class="comment">// construct/copy/destroy:</span>
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<a class="link" href="match_results.html#boost_regex.match_results.construct">explicit match_results</a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span><span class="special">&</span> <span class="identifier">a</span> <span class="special">=</span> <span class="identifier">Allocator</span><span class="special">());</span>
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<a class="link" href="match_results.html#boost_regex.match_results.copy_construct">match_results</a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">match_results</span><span class="special">&</span> <span class="identifier">m</span><span class="special">);</span>
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<a class="link" href="match_results.html#boost_regex.match_results.assign">match_results& operator=</a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">match_results</span><span class="special">&</span> <span class="identifier">m</span><span class="special">);</span>
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<span class="special">~</span><span class="identifier">match_results</span><span class="special">();</span>
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<span class="comment">// size:
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</span> <span class="identifier">size_type</span> <a class="link" href="match_results.html#boost_regex.match_results.size">size</a><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="comment">// size:</span>
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<span class="identifier">size_type</span> <a class="link" href="match_results.html#boost_regex.match_results.size">size</a><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="identifier">size_type</span> <a class="link" href="match_results.html#boost_regex.match_results.max_size">max_size</a><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="keyword">bool</span> <a class="link" href="match_results.html#boost_regex.match_results.empty">empty</a><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="comment">// element access:
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</span> <span class="identifier">difference_type</span> <a class="link" href="match_results.html#boost_regex.match_results.length">length</a><span class="special">(</span><span class="keyword">int</span> <span class="identifier">sub</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="comment">// element access:</span>
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<span class="identifier">difference_type</span> <a class="link" href="match_results.html#boost_regex.match_results.length">length</a><span class="special">(</span><span class="keyword">int</span> <span class="identifier">sub</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="identifier">difference_type</span> <a class="link" href="match_results.html#boost_regex.match_results.length">length</a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_type</span><span class="special">*</span> <span class="identifier">sub</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">></span>
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<span class="identifier">difference_type</span> <a class="link" href="match_results.html#boost_regex.match_results.length">length</a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">sub</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
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@ -131,8 +131,8 @@
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<span class="identifier">const_reference</span> <a class="link" href="match_results.html#boost_regex.match_results.suffix">suffix</a><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="identifier">const_iterator</span> <a class="link" href="match_results.html#boost_regex.match_results.begin">begin</a><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="identifier">const_iterator</span> <a class="link" href="match_results.html#boost_regex.match_results.end">end</a><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="comment">// format:
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</span> <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">OutputIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Formatter</span><span class="special">></span>
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<span class="comment">// format:</span>
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<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">OutputIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Formatter</span><span class="special">></span>
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<span class="identifier">OutputIterator</span> <a class="link" href="match_results.html#boost_regex.match_results.format">format</a><span class="special">(</span><span class="identifier">OutputIterator</span> <span class="identifier">out</span><span class="special">,</span>
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<span class="identifier">Formatter</span> <span class="identifier">fmt</span><span class="special">,</span>
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<span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
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<span class="identifier">match_results</span><span class="special"><</span><span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">>&</span> <span class="identifier">m2</span><span class="special">);</span>
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</pre>
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<a name="boost_regex.ref.match_results.description"></a><h5>
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<a name="id1032184"></a>
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<a name="boost_regex.ref.match_results.description-heading"></a>
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<a class="link" href="match_results.html#boost_regex.ref.match_results.description">Description</a>
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</h5>
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<p>
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then depending on the number of arguments the function object accepts, it
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will either:
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</p>
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<div class="itemizedlist"><ul type="disc">
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<li>
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<div class="itemizedlist"><ul class="itemizedlist" type="disc">
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<li class="listitem">
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Call <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(*</span><span class="keyword">this</span><span class="special">)</span></code>
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and copy the string returned to <code class="computeroutput"><span class="identifier">OutputIterator</span></code>
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<span class="emphasis"><em>out</em></span>.
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</li>
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<li>
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<li class="listitem">
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Call <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(*</span><span class="keyword">this</span><span class="special">,</span> <span class="identifier">out</span><span class="special">)</span></code>.
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</li>
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<li>
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<li class="listitem">
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Call <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(*</span><span class="keyword">this</span><span class="special">,</span> <span class="identifier">out</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">)</span></code>.
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</li>
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</ul></div>
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then depending on the number of arguments the function object accepts, it
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will either:
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</p>
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<div class="itemizedlist"><ul type="disc">
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<li>
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<div class="itemizedlist"><ul class="itemizedlist" type="disc">
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<li class="listitem">
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Call <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(*</span><span class="keyword">this</span><span class="special">)</span></code>
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and return the result.
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</li>
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<li>
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<li class="listitem">
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Call <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(*</span><span class="keyword">this</span><span class="special">,</span> <span class="identifier">unspecified</span><span class="special">-</span><span class="identifier">output</span><span class="special">-</span><span class="identifier">iterator</span><span class="special">)</span></code>,
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where <code class="computeroutput"><span class="identifier">unspecified</span><span class="special">-</span><span class="identifier">output</span><span class="special">-</span><span class="identifier">iterator</span></code> is an unspecified OutputIterator
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type used to copy the output to the string result.
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</li>
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<li>
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<li class="listitem">
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Call <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(*</span><span class="keyword">this</span><span class="special">,</span> <span class="identifier">unspecified</span><span class="special">-</span><span class="identifier">output</span><span class="special">-</span><span class="identifier">iterator</span><span class="special">,</span>
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<span class="identifier">flags</span><span class="special">)</span></code>,
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where <code class="computeroutput"><span class="identifier">unspecified</span><span class="special">-</span><span class="identifier">output</span><span class="special">-</span><span class="identifier">iterator</span></code> is an unspecified OutputIterator
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<span class="bold"><strong>Rationale</strong></span>: Enabling this feature has several
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consequences:
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</p>
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<div class="itemizedlist"><ul type="disc">
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<li>
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<div class="itemizedlist"><ul class="itemizedlist" type="disc">
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<li class="listitem">
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sub_match occupies more memory resulting in complex expressions running
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out of memory or stack space more quickly during matching.
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</li>
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<li>
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<li class="listitem">
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The matching algorithms are less efficient at handling some features
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(independent sub-expressions for example), even when match_extra is not
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used.
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</li>
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<li>
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<li class="listitem">
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The matching algorithms are much less efficient (i.e. slower), when match_extra
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is used. Mostly this is down to the extra memory allocations that have
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to take place.
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@ -818,7 +818,7 @@
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 1998 -2010 John Maddock<p>
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<td align="right"><div class="copyright-footer">Copyright © 1998-2010 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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</p>
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