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diff --git a/doc/html/qxmlcontenthandler.html b/doc/html/qxmlcontenthandler.html new file mode 100644 index 000000000..9b914abd9 --- /dev/null +++ b/doc/html/qxmlcontenthandler.html @@ -0,0 +1,266 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/xml/qxml.cpp:1207 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>TQXmlContentHandler Class</title> +<style type="text/css"><!-- +fn { margin-left: 1cm; text-indent: -1cm; } +a:link { color: #004faf; text-decoration: none } +a:visited { color: #672967; text-decoration: none } +body { background: #ffffff; color: black; } +--></style> +</head> +<body> + +<table border="0" cellpadding="0" cellspacing="0" width="100%"> +<tr bgcolor="#E5E5E5"> +<td valign=center> + <a href="index.html"> +<font color="#004faf">Home</font></a> + | <a href="classes.html"> +<font color="#004faf">All Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQXmlContentHandler Class Reference<br><small>[<a href="xml.html">XML module</a>]</small></h1> + +<p>The TQXmlContentHandler class provides an interface to +report the logical content of XML data. +<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 <<a href="qxml-h.html">qxml.h</a>></tt> +<p>Inherited by <a href="qxmldefaulthandler.html">TQXmlDefaultHandler</a>. +<p><a href="qxmlcontenthandler-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn>virtual void <a href="#setDocumentLocator"><b>setDocumentLocator</b></a> ( TQXmlLocator * locator ) = 0</li> +<li class=fn>virtual bool <a href="#startDocument"><b>startDocument</b></a> () = 0</li> +<li class=fn>virtual bool <a href="#endDocument"><b>endDocument</b></a> () = 0</li> +<li class=fn>virtual bool <a href="#startPrefixMapping"><b>startPrefixMapping</b></a> ( const TQString & prefix, const TQString & uri ) = 0</li> +<li class=fn>virtual bool <a href="#endPrefixMapping"><b>endPrefixMapping</b></a> ( const TQString & prefix ) = 0</li> +<li class=fn>virtual bool <a href="#startElement"><b>startElement</b></a> ( const TQString & namespaceURI, const TQString & localName, const TQString & qName, const TQXmlAttributes & atts ) = 0</li> +<li class=fn>virtual bool <a href="#endElement"><b>endElement</b></a> ( const TQString & namespaceURI, const TQString & localName, const TQString & qName ) = 0</li> +<li class=fn>virtual bool <a href="#characters"><b>characters</b></a> ( const TQString & ch ) = 0</li> +<li class=fn>virtual bool <a href="#ignorableWhitespace"><b>ignorableWhitespace</b></a> ( const TQString & ch ) = 0</li> +<li class=fn>virtual bool <a href="#processingInstruction"><b>processingInstruction</b></a> ( const TQString & target, const TQString & data ) = 0</li> +<li class=fn>virtual bool <a href="#skippedEntity"><b>skippedEntity</b></a> ( const TQString & name ) = 0</li> +<li class=fn>virtual TQString <a href="#errorString"><b>errorString</b></a> () = 0</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + + +The TQXmlContentHandler class provides an interface to +report the logical content of XML data. + +<p> + +<p> If the application needs to be informed of basic parsing events, +it can implement this interface and activate it using +<a href="qxmlreader.html#setContentHandler">TQXmlReader::setContentHandler</a>(). The reader can then report basic +document-related events like the start and end of elements and +character data through this interface. +<p> The order of events in this interface is very important, and +mirrors the order of information in the document itself. For +example, all of an element's content (character data, processing +instructions, and sub-elements) appears, in order, between the +<a href="#startElement">startElement</a>() event and the corresponding <a href="#endElement">endElement</a>() event. +<p> The class <a href="qxmldefaulthandler.html">TQXmlDefaultHandler</a> provides a default implementation for +this interface; subclassing from the TQXmlDefaultHandler class is +very convenient if you only want to be informed of some parsing +events. +<p> The <a href="#startDocument">startDocument</a>() function is called at the start of the +document, and <a href="#endDocument">endDocument</a>() is called at the end. Before parsing +begins <a href="#setDocumentLocator">setDocumentLocator</a>() is called. For each element +startElement() is called, with endElement() being called at the +end of each element. The <a href="#characters">characters</a>() function is called with +chunks of character data; <a href="#ignorableWhitespace">ignorableWhitespace</a>() is called with +chunks of whitespace and <a href="#processingInstruction">processingInstruction</a>() is called with +processing instructions. If an entity is skipped <a href="#skippedEntity">skippedEntity</a>() +is called. At the beginning of prefix-URI scopes +<a href="#startPrefixMapping">startPrefixMapping</a>() is called. +<p> See also the <a href="xml.html#sax2Intro">Introduction to SAX2</a>. +<p> <p>See also <a href="qxmldtdhandler.html">TQXmlDTDHandler</a>, <a href="qxmldeclhandler.html">TQXmlDeclHandler</a>, <a href="qxmlentityresolver.html">TQXmlEntityResolver</a>, <a href="qxmlerrorhandler.html">TQXmlErrorHandler</a>, <a href="qxmllexicalhandler.html">TQXmlLexicalHandler</a>, and <a href="xml-tools.html">XML</a>. + +<hr><h2>Member Function Documentation</h2> +<h3 class=fn>bool <a name="characters"></a>TQXmlContentHandler::characters ( const <a href="qstring.html">TQString</a> & ch )<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function when it has parsed a chunk of +character data (either normal character data or character data +inside a CDATA section; if you need to distinguish between those +two types you must use <a href="qxmllexicalhandler.html#startCDATA">TQXmlLexicalHandler::startCDATA</a>() and +<a href="qxmllexicalhandler.html#endCDATA">TQXmlLexicalHandler::endCDATA</a>()). The character data is reported in +<em>ch</em>. +<p> Some readers report whitespace in element content using the +<a href="#ignorableWhitespace">ignorableWhitespace</a>() function rather than using this one. +<p> A reader may report the character data of an element in more than +one chunk; e.g. a reader might want to report "a<b" in three +<a href="#characters">characters</a>() events ("a ", "<" and " b"). +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. + +<h3 class=fn>bool <a name="endDocument"></a>TQXmlContentHandler::endDocument ()<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function after it has finished parsing. It +is called just once, and is the last handler function called. It +is called after the reader has read all input or has abandoned +parsing because of a fatal error. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. +<p> <p>See also <a href="#startDocument">startDocument</a>(). + +<h3 class=fn>bool <a name="endElement"></a>TQXmlContentHandler::endElement ( const <a href="qstring.html">TQString</a> & namespaceURI, const <a href="qstring.html">TQString</a> & localName, const <a href="qstring.html">TQString</a> & qName )<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function when it has parsed an end element +tag with the qualified name <em>qName</em>, the local name <em>localName</em> +and the namespace URI <em>namespaceURI</em>. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. +<p> See also the <a href="xml.html#sax2Namespaces">namespace description</a>. +<p> <p>See also <a href="#startElement">startElement</a>(). + +<p>Example: <a href="xml-sax-walkthrough.html#x2136">xml/tagreader/structureparser.cpp</a>. +<h3 class=fn>bool <a name="endPrefixMapping"></a>TQXmlContentHandler::endPrefixMapping ( const <a href="qstring.html">TQString</a> & prefix )<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function to signal the end of a prefix +mapping for the prefix <em>prefix</em>. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. +<p> See also the <a href="xml.html#sax2Namespaces">namespace description</a>. +<p> <p>See also <a href="#startPrefixMapping">startPrefixMapping</a>(). + +<h3 class=fn><a href="qstring.html">TQString</a> <a name="errorString"></a>TQXmlContentHandler::errorString ()<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function to get an error string, e.g. if any +of the handler functions returns FALSE. + +<h3 class=fn>bool <a name="ignorableWhitespace"></a>TQXmlContentHandler::ignorableWhitespace ( const <a href="qstring.html">TQString</a> & ch )<tt> [pure virtual]</tt> +</h3> + +<p> Some readers may use this function to report each chunk of +whitespace in element content. The whitespace is reported in <em>ch</em>. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. + +<h3 class=fn>bool <a name="processingInstruction"></a>TQXmlContentHandler::processingInstruction ( const <a href="qstring.html">TQString</a> & target, const <a href="qstring.html">TQString</a> & data )<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function when it has parsed a processing +instruction. +<p> <em>target</em> is the target name of the processing instruction and <em>data</em> is the data in the processing instruction. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. + +<h3 class=fn>void <a name="setDocumentLocator"></a>TQXmlContentHandler::setDocumentLocator ( <a href="qxmllocator.html">TQXmlLocator</a> * locator )<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function before it starts parsing the +document. The argument <em>locator</em> is a pointer to a <a href="qxmllocator.html">TQXmlLocator</a> +which allows the application to get the parsing position within +the document. +<p> Do not destroy the <em>locator</em>; it is destroyed when the reader is +destroyed. (Do not use the <em>locator</em> after the reader is +destroyed). + +<h3 class=fn>bool <a name="skippedEntity"></a>TQXmlContentHandler::skippedEntity ( const <a href="qstring.html">TQString</a> & name )<tt> [pure virtual]</tt> +</h3> + +<p> Some readers may skip entities if they have not seen the +declarations (e.g. because they are in an external DTD). If they +do so they report that they skipped the entity called <em>name</em> by +calling this function. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. + +<h3 class=fn>bool <a name="startDocument"></a>TQXmlContentHandler::startDocument ()<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function when it starts parsing the +document. The reader calls this function just once, after the call +to <a href="#setDocumentLocator">setDocumentLocator</a>(), and before any other functions in this +class or in the <a href="qxmldtdhandler.html">TQXmlDTDHandler</a> class are called. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. +<p> <p>See also <a href="#endDocument">endDocument</a>(). + +<p>Example: <a href="xml-sax-walkthrough.html#x2137">xml/tagreader/structureparser.cpp</a>. +<h3 class=fn>bool <a name="startElement"></a>TQXmlContentHandler::startElement ( const <a href="qstring.html">TQString</a> & namespaceURI, const <a href="qstring.html">TQString</a> & localName, const <a href="qstring.html">TQString</a> & qName, const <a href="qxmlattributes.html">TQXmlAttributes</a> & atts )<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function when it has parsed a start element +tag. +<p> There is a corresponding <a href="#endElement">endElement</a>() call when the corresponding +end element tag is read. The <a href="#startElement">startElement</a>() and endElement() calls +are always nested correctly. Empty element tags (e.g. <tt><x/></tt>) +cause a startElement() call to be immediately followed by an +endElement() call. +<p> The attribute list provided only contains attributes with explicit +values. The attribute list contains attributes used for namespace +declaration (i.e. attributes starting with xmlns) only if the +namespace-prefix property of the reader is TRUE. +<p> The argument <em>namespaceURI</em> is the namespace URI, or +<a href="qstring.html#TQString-null">TQString::null</a> if the element has no namespace URI or if no +namespace processing is done. <em>localName</em> is the local name +(without prefix), or TQString::null if no namespace processing is +done, <em>qName</em> is the qualified name (with prefix) and <em>atts</em> are +the attributes attached to the element. If there are no +attributes, <em>atts</em> is an empty attributes object. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. +<p> See also the <a href="xml.html#sax2Namespaces">namespace description</a>. +<p> <p>See also <a href="#endElement">endElement</a>(). + +<p>Example: <a href="xml-sax-walkthrough.html#x2138">xml/tagreader/structureparser.cpp</a>. +<h3 class=fn>bool <a name="startPrefixMapping"></a>TQXmlContentHandler::startPrefixMapping ( const <a href="qstring.html">TQString</a> & prefix, const <a href="qstring.html">TQString</a> & uri )<tt> [pure virtual]</tt> +</h3> + +<p> The reader calls this function to signal the begin of a prefix-URI +namespace mapping scope. This information is not necessary for +normal namespace processing since the reader automatically +replaces prefixes for element and attribute names. +<p> Note that <a href="#startPrefixMapping">startPrefixMapping</a>() and <a href="#endPrefixMapping">endPrefixMapping</a>() calls are +not guaranteed to be properly nested relative to each other: all +startPrefixMapping() events occur before the corresponding +<a href="#startElement">startElement</a>() event, and all endPrefixMapping() events occur +after the corresponding <a href="#endElement">endElement</a>() event, but their order is not +otherwise guaranteed. +<p> The argument <em>prefix</em> is the namespace prefix being declared and +the argument <em>uri</em> is the namespace URI the prefix is mapped to. +<p> If this function returns FALSE the reader stops parsing and +reports an error. The reader uses the function <a href="#errorString">errorString</a>() to +get the error message. +<p> See also the <a href="xml.html#sax2Namespaces">namespace description</a>. +<p> <p>See also <a href="#endPrefixMapping">endPrefixMapping</a>(). + +<!-- eof --> +<hr><p> +This file is part of the <a href="index.html">TQt toolkit</a>. +Copyright © 1995-2007 +<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<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> +</table></div></address></body> +</html> |