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+<title>TQXmlNamespaceSupport Class</title>
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+<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQXmlNamespaceSupport Class Reference<br><small>[<a href="xml.html">XML module</a>]</small></h1>
+
+<p>The TQXmlNamespaceSupport class is a helper class for XML
+readers which want to include namespace support.
+<a href="#details">More...</a>
+<p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when TQt is built with thread support.</p>
+<p><tt>#include &lt;<a href="tqxml-h.html">tqxml.h</a>&gt;</tt>
+<p><a href="tqxmlnamespacesupport-members.html">List of all member functions.</a>
+<h2>Public Members</h2>
+<ul>
+<li class=fn><a href="#TQXmlNamespaceSupport"><b>TQXmlNamespaceSupport</b></a> ()</li>
+<li class=fn><a href="#~TQXmlNamespaceSupport"><b>~TQXmlNamespaceSupport</b></a> ()</li>
+<li class=fn>void <a href="#setPrefix"><b>setPrefix</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;pre, const&nbsp;TQString&nbsp;&amp;&nbsp;uri )</li>
+<li class=fn>TQString <a href="#prefix"><b>prefix</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;uri ) const</li>
+<li class=fn>TQString <a href="#uri"><b>uri</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;prefix ) const</li>
+<li class=fn>void <a href="#splitName"><b>splitName</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;qname, TQString&nbsp;&amp;&nbsp;prefix, TQString&nbsp;&amp;&nbsp;localname ) const</li>
+<li class=fn>void <a href="#processName"><b>processName</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;qname, bool&nbsp;isAttribute, TQString&nbsp;&amp;&nbsp;nsuri, TQString&nbsp;&amp;&nbsp;localname ) const</li>
+<li class=fn>TQStringList <a href="#prefixes"><b>prefixes</b></a> () const</li>
+<li class=fn>TQStringList <a href="#prefixes-2"><b>prefixes</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;uri ) const</li>
+<li class=fn>void <a href="#pushContext"><b>pushContext</b></a> ()</li>
+<li class=fn>void <a href="#popContext"><b>popContext</b></a> ()</li>
+<li class=fn>void <a href="#reset"><b>reset</b></a> ()</li>
+</ul>
+<hr><a name="details"></a><h2>Detailed Description</h2>
+
+
+
+The TQXmlNamespaceSupport class is a helper class for XML
+readers which want to include namespace support.
+
+<p>
+
+<p> You can set the prefix for the current namespace with <a href="#setPrefix">setPrefix</a>(),
+and get the list of current prefixes (or those for a given URI)
+with <a href="#prefixes">prefixes</a>(). The namespace URI is available from <a href="#uri">uri</a>(). Use
+<a href="#pushContext">pushContext</a>() to start a new namespace context, and <a href="#popContext">popContext</a>()
+to return to the previous namespace context. Use <a href="#splitName">splitName</a>() or
+<a href="#processName">processName</a>() to split a name into its prefix and local name.
+<p> See also the <a href="xml.html#sax2Namespaces">namespace description</a>.
+<p>See also <a href="xml-tools.html">XML</a>.
+
+<hr><h2>Member Function Documentation</h2>
+<h3 class=fn><a name="TQXmlNamespaceSupport"></a>TQXmlNamespaceSupport::TQXmlNamespaceSupport ()
+</h3>
+Constructs a TQXmlNamespaceSupport.
+
+<h3 class=fn><a name="~TQXmlNamespaceSupport"></a>TQXmlNamespaceSupport::~TQXmlNamespaceSupport ()
+</h3>
+Destroys a TQXmlNamespaceSupport.
+
+<h3 class=fn>void <a name="popContext"></a>TQXmlNamespaceSupport::popContext ()
+</h3>
+Reverts to the previous namespace context.
+<p> Normally, you should pop the context at the end of each XML
+element. After popping the context, all namespace prefix mappings
+that were previously in force are restored.
+<p> <p>See also <a href="#pushContext">pushContext</a>().
+
+<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="prefix"></a>TQXmlNamespaceSupport::prefix ( const&nbsp;<a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;uri ) const
+</h3>
+Returns one of the prefixes mapped to the namespace URI <em>uri</em>.
+<p> If more than one prefix is currently mapped to the same URI, this
+function makes an arbitrary selection; if you want all of the
+prefixes, use <a href="#prefixes">prefixes</a>() instead.
+<p> Note: to check for a default prefix, use the <a href="#uri">uri</a>() function with
+an argument of "".
+
+<h3 class=fn><a href="ntqstringlist.html">TQStringList</a> <a name="prefixes"></a>TQXmlNamespaceSupport::prefixes () const
+</h3>
+Returns a list of all the prefixes currently declared.
+<p> If there is a default prefix, this function does not return it in
+the list; check for the default prefix using <a href="#uri">uri</a>() with an
+argument of "".
+<p> Note that if you want to iterate over the list, you should iterate
+over a copy, e.g.
+<pre>
+ <a href="ntqstringlist.html">TQStringList</a> list = myXmlNamespaceSupport.prefixes();
+ TQStringList::iterator it = list.<a href="ntqvaluelist.html#begin">begin</a>();
+ while ( it != list.<a href="ntqvaluelist.html#end">end</a>() ) {
+ myProcessing( *it );
+ ++it;
+ }
+ </pre>
+
+
+<h3 class=fn><a href="ntqstringlist.html">TQStringList</a> <a name="prefixes-2"></a>TQXmlNamespaceSupport::prefixes ( const&nbsp;<a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;uri ) const
+</h3>
+This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
+<p> Returns a list of all prefixes currently declared for the
+namespace URI <em>uri</em>.
+<p> The "xml:" prefix is included. If you only want one prefix that is
+mapped to the namespace URI, and you don't care which one you get,
+use the <a href="#prefix">prefix</a>() function instead.
+<p> Note: the empty (default) prefix is never included in this list;
+to check for the presence of a default namespace, use <a href="#uri">uri</a>() with
+an argument of "".
+<p> Note that if you want to iterate over the list, you should iterate
+over a copy, e.g.
+<pre>
+ <a href="ntqstringlist.html">TQStringList</a> list = myXmlNamespaceSupport.prefixes( "" );
+ TQStringList::Iterator it = list.<a href="ntqvaluelist.html#begin">begin</a>();
+ while( it != list.<a href="ntqvaluelist.html#end">end</a>() ) {
+ myProcessing( *it );
+ ++it;
+ }
+ </pre>
+
+
+<h3 class=fn>void <a name="processName"></a>TQXmlNamespaceSupport::processName ( const&nbsp;<a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;qname, bool&nbsp;isAttribute, <a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;nsuri, <a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;localname ) const
+</h3>
+Processes a raw XML 1.0 name in the current context by removing
+the prefix and looking it up among the prefixes currently
+declared.
+<p> <em>qname</em> is the raw XML 1.0 name to be processed. <em>isAttribute</em>
+is TRUE if the name is an attribute name.
+<p> This function stores the namespace URI in <em>nsuri</em> (which will be
+set to <a href="ntqstring.html#TQString-null">TQString::null</a> if the raw name has an undeclared prefix),
+and stores the local name (without prefix) in <em>localname</em> (which
+will be set to TQString::null if no namespace is in use).
+<p> Note that attribute names are processed differently than element
+names: an unprefixed element name gets the default namespace (if
+any), while an unprefixed element name does not.
+
+<h3 class=fn>void <a name="pushContext"></a>TQXmlNamespaceSupport::pushContext ()
+</h3>
+Starts a new namespace context.
+<p> Normally, you should push a new context at the beginning of each
+XML element: the new context automatically inherits the
+declarations of its parent context, and it also keeps track of
+which declarations were made within this context.
+<p> <p>See also <a href="#popContext">popContext</a>().
+
+<h3 class=fn>void <a name="reset"></a>TQXmlNamespaceSupport::reset ()
+</h3>
+Resets this namespace support object ready for reuse.
+
+<h3 class=fn>void <a name="setPrefix"></a>TQXmlNamespaceSupport::setPrefix ( const&nbsp;<a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;pre, const&nbsp;<a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;uri )
+</h3>
+This function declares a prefix <em>pre</em> in the current namespace
+context to be the namespace URI <em>uri</em>. The prefix remains in
+force until this context is popped, unless it is shadowed in a
+descendant context.
+<p> Note that there is an asymmetry in this library. <a href="#prefix">prefix</a>() does not
+return the default "" prefix, even if you have declared one; to
+check for a default prefix, you must look it up explicitly using
+<a href="#uri">uri</a>(). This asymmetry exists to make it easier to look up prefixes
+for attribute names, where the default prefix is not allowed.
+
+<h3 class=fn>void <a name="splitName"></a>TQXmlNamespaceSupport::splitName ( const&nbsp;<a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;qname, <a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;prefix, <a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;localname ) const
+</h3>
+Splits the name <em>qname</em> at the ':' and returns the prefix in <em>prefix</em> and the local name in <em>localname</em>.
+<p> <p>See also <a href="#processName">processName</a>().
+
+<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="uri"></a>TQXmlNamespaceSupport::uri ( const&nbsp;<a href="ntqstring.html">TQString</a>&nbsp;&amp;&nbsp;prefix ) const
+</h3>
+Looks up the prefix <em>prefix</em> in the current context and returns
+the currently-mapped namespace URI. Use the empty string ("") for
+the default namespace.
+
+<!-- eof -->
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+This file is part of the <a href="index.html">TQt toolkit</a>.
+Copyright &copy; 1995-2007
+<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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+<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
+<td align=right><div align=right>TQt 3.3.8</div>
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+</html>