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<hr><h1>XMLStream Class Reference</h1>This class impliments a basic XML stream parser that can be used to examine an XML resource thru virtual I/O methods. XML Stream Parser (SAX).
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="xml_8h-source.html">xml.h</a>></code>
<p>
<a href="class_x_m_l_stream-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
<tr><td colspan=2><br><h2>Public Methods</h2></td></tr>
<tr><td nowrap align=right valign=top>virtual bool </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a0">Open</a> (const char *resource)</td></tr>
<tr><td> </td><td><font size=-1><em>May perform an open operation on behalf of a parsed resource.</em> <a href="#a0">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a1">Close</a> (void)</td></tr>
<tr><td> </td><td><font size=-1><em>May perform a close operation of an i/o source when the parser has completed operation.</em> <a href="#a1">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual <a class="el" href="slog_8h.html#a17">slog_level_t</a> </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a2">getLogging</a> (void)</td></tr>
<tr><td> </td><td><font size=-1><em>Get error logging level.</em> <a href="#a2">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a3">comment</a> (const unsigned char *text)</td></tr>
<tr><td> </td><td><font size=-1><em>Virtual to receive embedded comments in an XML document being parsed.</em> <a href="#a3">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual int </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a4">Read</a> (unsigned char *buffer, int len)=0</td></tr>
<tr><td> </td><td><font size=-1><em>Read method to aquire data for the parser.</em> <a href="#a4">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a5">characters</a> (const unsigned char *text, unsigned len)=0</td></tr>
<tr><td> </td><td><font size=-1><em>Virtual to receive character text extracted from the document in the current element.</em> <a href="#a5">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a6">startDocument</a> (void)</td></tr>
<tr><td> </td><td><font size=-1><em>Identify start of document event.</em> <a href="#a6">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a7">endDocument</a> (void)</td></tr>
<tr><td> </td><td><font size=-1><em>Identify end of document event.</em> <a href="#a7">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a8">startElement</a> (const unsigned char *name, const unsigned char **attr)=0</td></tr>
<tr><td> </td><td><font size=-1><em>Identify start of an element in the document.</em> <a href="#a8">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a9">endElement</a> (const unsigned char *name)=0</td></tr>
<tr><td> </td><td><font size=-1><em>Identify end of an element in the document.</em> <a href="#a9">More...</a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>bool </td><td valign=bottom><a class="el" href="class_x_m_l_stream.html#a10">Parse</a> (const char *resource=NULL)</td></tr>
<tr><td> </td><td><font size=-1><em>Parse a resource as a stream thru the virtual read method.</em> <a href="#a10">More...</a><em></em></font><br><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
This class impliments a basic XML stream parser that can be used to examine an XML resource thru virtual I/O methods. XML Stream Parser (SAX).
<p>
This class must be derived into one that can impliment the physical I/O required to parse actual data. A mixer class using XMLStream and <a class="el" href="class_u_r_l_stream.html">URLStream</a> would seem a likely combination for this purpose.
<p>
<dl compact><dt><b>
Author: </b><dd>
David Sugar <<a href="mailto:dyfet@ostel.com">dyfet@ostel.com</a>> </dl>
<p>
<hr><h2>Member Function Documentation</h2>
<a name="a1" doxytag="XMLStream::Close"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual void XMLStream::Close </td>
<td class="md">( </td>
<td class="md">void</td>
<td class="mdname1"> </td>
<td class="md">) </td>
<td class="md"><code> [inline, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
May perform a close operation of an i/o source when the parser has completed operation.
<p>
</td>
</tr>
</table>
<a name="a0" doxytag="XMLStream::Open"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual bool XMLStream::Open </td>
<td class="md">( </td>
<td class="md">const char *</td>
<td class="mdname1"> <em>resource</em> </td>
<td class="md">) </td>
<td class="md"><code> [inline, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
May perform an open operation on behalf of a parsed resource.
<p>
In some cases, the parser may be merged with a class that already has performed some kind of open, and this method can then be ignored.
<p>
<dl compact><dt><b>
Returns: </b><dd>
true if open is successful. </dl><dl compact><dt><b>
Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>resource
</em> </td><td>
passed to Parse methods. </td></tr>
</table>
</dl> </td>
</tr>
</table>
<a name="a10" doxytag="XMLStream::Parse"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> bool XMLStream::Parse </td>
<td class="md">( </td>
<td class="md">const char *</td>
<td class="mdname1"> <em>resource</em> = NULL </td>
<td class="md">) </td>
<td class="md"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Parse a resource as a stream thru the virtual read method.
<p>
<dl compact><dt><b>
Returns: </b><dd>
true if well formed document has been fully parsed. </dl><dl compact><dt><b>
Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>optional
</em> </td><td>
name of resource. </td></tr>
</table>
</dl> </td>
</tr>
</table>
<a name="a4" doxytag="XMLStream::Read"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual int XMLStream::Read </td>
<td class="md">( </td>
<td class="md">unsigned char *</td>
<td class="mdname"> <em>buffer</em>, </td>
</tr>
<tr>
<td></td>
<td></td>
<td class="md">int</td>
<td class="mdname"> <em>len</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [pure virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Read method to aquire data for the parser.
<p>
<dl compact><dt><b>
Returns: </b><dd>
number of bytes actually read. </dl><dl compact><dt><b>
Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>buffer
</em> </td><td>
to read data into. </td></tr>
<tr><td valign=top><em>number
</em> </td><td>
of bytes to read. </td></tr>
</table>
</dl> </td>
</tr>
</table>
<a name="a5" doxytag="XMLStream::characters"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual void XMLStream::characters </td>
<td class="md">( </td>
<td class="md">const unsigned char *</td>
<td class="mdname"> <em>text</em>, </td>
</tr>
<tr>
<td></td>
<td></td>
<td class="md">unsigned</td>
<td class="mdname"> <em>len</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [pure virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Virtual to receive character text extracted from the document in the current element.
<p>
<dl compact><dt><b>
Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>text
</em> </td><td>
received. </td></tr>
<tr><td valign=top><em>length
</em> </td><td>
of text received. </td></tr>
</table>
</dl> </td>
</tr>
</table>
<a name="a3" doxytag="XMLStream::comment"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual void XMLStream::comment </td>
<td class="md">( </td>
<td class="md">const unsigned char *</td>
<td class="mdname1"> <em>text</em> </td>
<td class="md">) </td>
<td class="md"><code> [inline, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Virtual to receive embedded comments in an XML document being parsed.
<p>
<dl compact><dt><b>
Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>text
</em> </td><td>
comment extracted. </td></tr>
</table>
</dl> </td>
</tr>
</table>
<a name="a7" doxytag="XMLStream::endDocument"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual void XMLStream::endDocument </td>
<td class="md">( </td>
<td class="md">void</td>
<td class="mdname1"> </td>
<td class="md">) </td>
<td class="md"><code> [inline, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Identify end of document event.
<p>
</td>
</tr>
</table>
<a name="a9" doxytag="XMLStream::endElement"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual void XMLStream::endElement </td>
<td class="md">( </td>
<td class="md">const unsigned char *</td>
<td class="mdname1"> <em>name</em> </td>
<td class="md">) </td>
<td class="md"><code> [pure virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Identify end of an element in the document.
<p>
<dl compact><dt><b>
Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>name
</em> </td><td>
of element found. </td></tr>
</table>
</dl> </td>
</tr>
</table>
<a name="a2" doxytag="XMLStream::getLogging"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual <a class="el" href="slog_8h.html#a17">slog_level_t</a> XMLStream::getLogging </td>
<td class="md">( </td>
<td class="md">void</td>
<td class="mdname1"> </td>
<td class="md">) </td>
<td class="md"><code> [inline, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Get error logging level.
<p>
<dl compact><dt><b>
Returns: </b><dd>
error logging level. </dl> </td>
</tr>
</table>
<a name="a6" doxytag="XMLStream::startDocument"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual void XMLStream::startDocument </td>
<td class="md">( </td>
<td class="md">void</td>
<td class="mdname1"> </td>
<td class="md">) </td>
<td class="md"><code> [inline, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Identify start of document event.
<p>
</td>
</tr>
</table>
<a name="a8" doxytag="XMLStream::startElement"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td class="md">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> virtual void XMLStream::startElement </td>
<td class="md">( </td>
<td class="md">const unsigned char *</td>
<td class="mdname"> <em>name</em>, </td>
</tr>
<tr>
<td></td>
<td></td>
<td class="md">const unsigned char **</td>
<td class="mdname"> <em>attr</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [pure virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Identify start of an element in the document.
<p>
<dl compact><dt><b>
Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>name
</em> </td><td>
of element found. </td></tr>
<tr><td valign=top><em>list
</em> </td><td>
of attributes extracted. </td></tr>
</table>
</dl> </td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="xml_8h-source.html">xml.h</a></ul>
<hr><address><small>Generated at Tue Nov 20 13:28:51 2001 for CommonC++ by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.gif" alt="doxygen" align="middle" border=0
width=110 height=53></a>1.2.10 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>,
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