diff options
Diffstat (limited to 'doc/html/boost/xpressive/mark_tag.html')
| -rw-r--r-- | doc/html/boost/xpressive/mark_tag.html | 42 |
1 files changed, 24 insertions, 18 deletions
diff --git a/doc/html/boost/xpressive/mark_tag.html b/doc/html/boost/xpressive/mark_tag.html index 60a238dcfa..aeb77390c9 100644 --- a/doc/html/boost/xpressive/mark_tag.html +++ b/doc/html/boost/xpressive/mark_tag.html @@ -4,10 +4,10 @@ <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Struct mark_tag</title> <link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> +<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> <link rel="up" href="../../xpressive/reference.html#header.boost.xpressive.regex_primitives_hpp" title="Header <boost/xpressive/regex_primitives.hpp>"> -<link rel="prev" href="regex_iterator.html" title="Struct template regex_iterator"> +<link rel="prev" href="../../BOOST_XPR_ENSURE_.html" title="Macro BOOST_XPR_ENSURE_"> <link rel="next" href="inf.html" title="Global inf"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> @@ -21,7 +21,7 @@ </tr></table> <hr> <div class="spirit-nav"> -<a accesskey="p" href="regex_iterator.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../xpressive/reference.html#header.boost.xpressive.regex_primitives_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="inf.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> +<a accesskey="p" href="../../BOOST_XPR_ENSURE_.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../xpressive/reference.html#header.boost.xpressive.regex_primitives_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="inf.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="refentry"> <a name="boost.xpressive.mark_tag"></a><div class="titlepage"></div> @@ -35,36 +35,42 @@ </span> <span class="keyword">struct</span> <a class="link" href="mark_tag.html" title="Struct mark_tag">mark_tag</a> <span class="special">{</span> <span class="comment">// <a class="link" href="mark_tag.html#boost.xpressive.mark_tagconstruct-copy-destruct">construct/copy/destruct</a></span> - <a class="link" href="mark_tag.html#idp375125072-bb"><span class="identifier">mark_tag</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span> + <a class="link" href="mark_tag.html#idm46563145421456-bb"><span class="identifier">mark_tag</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span> - <span class="comment">// <a class="link" href="mark_tag.html#idp375121680-bb">private static functions</a></span> - <span class="keyword">static</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="mark_tag.html#idp375122256-bb"><span class="identifier">make_tag</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span> + <span class="comment">// <a class="link" href="mark_tag.html#idm46563145424848-bb">private static functions</a></span> + <span class="keyword">static</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="mark_tag.html#idm46563145424272-bb"><span class="identifier">make_tag</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span> <span class="special">}</span><span class="special">;</span></pre></div> <div class="refsect1"> -<a name="idp509410464"></a><h2>Description</h2> +<a name="idm45927680637568"></a><h2>Description</h2> <p><code class="computeroutput"><a class="link" href="mark_tag.html" title="Struct mark_tag">mark_tag</a></code> is the type of the global sub-match placeholders <code class="computeroutput">s0</code>, <code class="computeroutput">s1</code>, etc.. You can use the <code class="computeroutput"><a class="link" href="mark_tag.html" title="Struct mark_tag">mark_tag</a></code> type to create your own sub-match placeholders with more meaningful names. This is roughly equivalent to the "named capture" feature of dynamic regular expressions.</p> <p>To create a named sub-match placeholder, initialize it with a unique integer. The integer must only be unique within the regex in which the placeholder is used. Then you can use it within static regexes to created sub-matches by assigning a sub-expression to it, or to refer back to already created sub-matches.</p> -<pre class="programlisting"> <span class="identifier">mark_tag</span> <span class="identifier">number</span><span class="special">(</span><span class="number">1</span><span class="special">)</span><span class="special">;</span> <span class="comment">// "number" is now equivalent to "s1"</span> - <span class="comment">// Match a number, followed by a space and the same number again</span> - <span class="identifier">sregex</span> <span class="identifier">rx</span> <span class="special">=</span> <span class="special">(</span><span class="identifier">number</span> <span class="special">=</span> <span class="special">+</span><span class="identifier">_d</span><span class="special">)</span> <span class="special">>></span> <span class="char">' '</span> <span class="special">>></span> <span class="identifier">number</span><span class="special">;</span> +<pre class="programlisting"><span class="identifier">mark_tag</span> <span class="identifier">number</span><span class="special">(</span><span class="number">1</span><span class="special">)</span><span class="special">;</span> <span class="comment">// "number" is now equivalent to "s1"</span> +<span class="comment">// Match a number, followed by a space and the same number again</span> +<span class="identifier">sregex</span> <span class="identifier">rx</span> <span class="special">=</span> <span class="special">(</span><span class="identifier">number</span> <span class="special">=</span> <span class="special">+</span><span class="identifier">_d</span><span class="special">)</span> <span class="special">>></span> <span class="char">' '</span> <span class="special">>></span> <span class="identifier">number</span><span class="special">;</span> </pre> <p>After a successful <code class="computeroutput">regex_match()</code> or <code class="computeroutput">regex_search()</code>, the sub-match placeholder can be used to index into the <code class="computeroutput"><a class="link" href="match_results.html" title="Struct template match_results">match_results</a><></code> object to retrieve the corresponding sub-match. </p> <div class="refsect2"> -<a name="idp509433344"></a><h3> +<a name="idm45927680614800"></a><h3> <a name="boost.xpressive.mark_tagconstruct-copy-destruct"></a><code class="computeroutput">mark_tag</code> public construct/copy/destruct</h3> <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> -<pre class="literallayout"><a name="idp375125072-bb"></a><span class="identifier">mark_tag</span><span class="special">(</span><span class="keyword">int</span> mark_nbr<span class="special">)</span><span class="special">;</span></pre>Initialize a <code class="computeroutput"><a class="link" href="mark_tag.html" title="Struct mark_tag">mark_tag</a></code> placeholder. <p> +<pre class="literallayout"><a name="idm46563145421456-bb"></a><span class="identifier">mark_tag</span><span class="special">(</span><span class="keyword">int</span> mark_nbr<span class="special">)</span><span class="special">;</span></pre>Initialize a <code class="computeroutput"><a class="link" href="mark_tag.html" title="Struct mark_tag">mark_tag</a></code> placeholder. <p> </p> -<div class="variablelist"><table border="0"> +<div class="variablelist"><table border="0" class="variablelist compact"> +<colgroup> <col align="left" valign="top"> +<col> +</colgroup> <tbody> <tr> <td><p><span class="term">Parameters:</span></p></td> -<td><div class="variablelist"><table border="0"> +<td><div class="variablelist"><table border="0" class="variablelist compact"> +<colgroup> <col align="left" valign="top"> +<col> +</colgroup> <tbody><tr> <td><p><span class="term"><code class="computeroutput">mark_nbr</code></span></p></td> <td><p>An integer that uniquely identifies this <code class="computeroutput"><code class="computeroutput"><a class="link" href="mark_tag.html" title="Struct mark_tag">mark_tag</a></code></code> within the static regexes in which this <code class="computeroutput"><code class="computeroutput"><a class="link" href="mark_tag.html" title="Struct mark_tag">mark_tag</a></code></code> will be used. </p></td> @@ -80,9 +86,9 @@ </li></ol></div> </div> <div class="refsect2"> -<a name="idp509449344"></a><h3> -<a name="idp375121680-bb"></a><code class="computeroutput">mark_tag</code> private static functions</h3> -<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idp375122256-bb"></a><span class="identifier">make_tag</span><span class="special">(</span><span class="keyword">int</span> mark_nbr<span class="special">)</span><span class="special">;</span></pre></li></ol></div> +<a name="idm45927680598864"></a><h3> +<a name="idm46563145424848-bb"></a><code class="computeroutput">mark_tag</code> private static functions</h3> +<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm46563145424272-bb"></a><span class="identifier">make_tag</span><span class="special">(</span><span class="keyword">int</span> mark_nbr<span class="special">)</span><span class="special">;</span></pre></li></ol></div> </div> </div> </div> @@ -96,7 +102,7 @@ </tr></table> <hr> <div class="spirit-nav"> -<a accesskey="p" href="regex_iterator.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../xpressive/reference.html#header.boost.xpressive.regex_primitives_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="inf.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> +<a accesskey="p" href="../../BOOST_XPR_ENSURE_.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../xpressive/reference.html#header.boost.xpressive.regex_primitives_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="inf.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html> |