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authorMike Hommey <glandium@debian.org>2006-10-26 11:17:37 +0200
committerMike Hommey <glandium@debian.org>2006-10-26 11:17:37 +0200
commit968041a8b2ec86c39b5074024ce97d136ecd9a95 (patch)
tree6971d7bce63213fd376b0e66311d0c67a8da4d64 /doc/example.html
parenta7e9d3f37d5e9fba4b9acaa43e7c12b6d9a669ae (diff)
downloadlibxml2-968041a8b2ec86c39b5074024ce97d136ecd9a95.tar.gz
Load /tmp/libxml2-2.6.27 intoupstream/2.6.27.dfsg
libxml2/branches/upstream/current.
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@@ -7,11 +7,11 @@ H1 {font-family: Verdana,Arial,Helvetica}
H2 {font-family: Verdana,Arial,Helvetica}
H3 {font-family: Verdana,Arial,Helvetica}
A:link, A:visited, A:active { text-decoration: underline }
-</style><title>A real example</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="epatents.png" alt="Action against software patents" /></a></td><td width="180"><a href="http://www.gnome.org/"><img src="gnome2.png" alt="Gnome2 Logo" /></a><a href="http://www.w3.org/Status"><img src="w3c.png" alt="W3C Logo" /></a><a href="http://www.redhat.com/"><img src="redhat.gif" alt="Red Hat Logo" /></a><div align="left"><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-180x168.gif" alt="Made with Libxml2 Logo" /></a></div></td><td><table border="0" width="90%" cellpadding="2" cellspacing="0" align="center" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3" bgcolor="#fffacd"><tr><td align="center"><h1>The XML C parser and toolkit of Gnome</h1><h2>A real example</h2></td></tr></table></td></tr></table></td></tr></table><table border="0" cellpadding="4" cellspacing="0" width="100%" align="center"><tr><td bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="2" width="100%"><tr><td valign="top" width="200" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Developer Menu</b></center></td></tr><tr><td bgcolor="#fffacd"><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="20" value="" /><input name="submit" type="submit" value="Search ..." /></form><ul><li><a href="index.html" style="font-weight:bold">Main Menu</a></li><li><a href="html/index.html" style="font-weight:bold">Reference Manual</a></li><li><a href="examples/index.html" style="font-weight:bold">Code Examples</a></li><li><a href="guidelines.html">XML Guidelines</a></li><li><a href="tutorial/index.html">Tutorial</a></li><li><a href="xmlreader.html">The Reader Interface</a></li><li><a href="ChangeLog.html">ChangeLog</a></li><li><a href="XSLT.html">XSLT</a></li><li><a href="python.html">Python and bindings</a></li><li><a href="architecture.html">libxml2 architecture</a></li><li><a href="tree.html">The tree output</a></li><li><a href="interface.html">The SAX interface</a></li><li><a href="xmlmem.html">Memory Management</a></li><li><a href="xmlio.html">I/O Interfaces</a></li><li><a href="library.html">The parser interfaces</a></li><li><a href="entities.html">Entities or no entities</a></li><li><a href="namespaces.html">Namespaces</a></li><li><a href="upgrade.html">Upgrading 1.x code</a></li><li><a href="threads.html">Thread safety</a></li><li><a href="DOM.html">DOM Principles</a></li><li><a href="example.html">A real example</a></li><li><a href="xml.html">flat page</a>, <a href="site.xsl">stylesheet</a></li></ul></td></tr></table><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>API Indexes</b></center></td></tr><tr><td bgcolor="#fffacd"><ul><li><a href="APIchunk0.html">Alphabetic</a></li><li><a href="APIconstructors.html">Constructors</a></li><li><a href="APIfunctions.html">Functions/Types</a></li><li><a href="APIfiles.html">Modules</a></li><li><a href="APIsymbols.html">Symbols</a></li></ul></td></tr></table><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Related links</b></center></td></tr><tr><td bgcolor="#fffacd"><ul><li><a href="http://mail.gnome.org/archives/xml/">Mail archive</a></li><li><a href="http://xmlsoft.org/XSLT/">XSLT libxslt</a></li><li><a href="http://phd.cs.unibo.it/gdome2/">DOM gdome2</a></li><li><a href="http://www.aleksey.com/xmlsec/">XML-DSig xmlsec</a></li><li><a href="ftp://xmlsoft.org/">FTP</a></li><li><a href="http://www.zlatkovic.com/projects/libxml/">Windows binaries</a></li><li><a href="http://www.blastwave.org/packages.php/libxml2">Solaris binaries</a></li><li><a href="http://www.explain.com.au/oss/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://libxmlplusplus.sourceforge.net/">C++ bindings</a></li><li><a href="http://www.zend.com/php5/articles/php5-xmlphp.php#Heading4">PHP bindings</a></li><li><a href="http://sourceforge.net/projects/libxml2-pas/">Pascal bindings</a></li><li><a href="http://libxml.rubyforge.org/">Ruby bindings</a></li><li><a href="http://tclxml.sourceforge.net/">Tcl bindings</a></li><li><a href="http://bugzilla.gnome.org/buglist.cgi?product=libxml2">Bug Tracker</a></li></ul></td></tr></table></td></tr></table></td><td valign="top" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%"><tr><td><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table border="0" cellpadding="3" cellspacing="1" width="100%"><tr><td bgcolor="#fffacd"><p>Here is a real size example, where the actual content of
-theapplicationdata is not kept in the DOM tree but uses internal structures.
-Itis based ona proposal to keep a database of jobs related to Gnome, with
-anXML basedstorage structure. Here is an <a href="gjobs.xml">XML
-encodedjobsbase</a>:</p><pre>&lt;?xml version="1.0"?&gt;
+</style><title>A real example</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="epatents.png" alt="Action against software patents" /></a></td><td width="180"><a href="http://www.gnome.org/"><img src="gnome2.png" alt="Gnome2 Logo" /></a><a href="http://www.w3.org/Status"><img src="w3c.png" alt="W3C Logo" /></a><a href="http://www.redhat.com/"><img src="redhat.gif" alt="Red Hat Logo" /></a><div align="left"><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-180x168.gif" alt="Made with Libxml2 Logo" /></a></div></td><td><table border="0" width="90%" cellpadding="2" cellspacing="0" align="center" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3" bgcolor="#fffacd"><tr><td align="center"><h1>The XML C parser and toolkit of Gnome</h1><h2>A real example</h2></td></tr></table></td></tr></table></td></tr></table><table border="0" cellpadding="4" cellspacing="0" width="100%" align="center"><tr><td bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="2" width="100%"><tr><td valign="top" width="200" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Developer Menu</b></center></td></tr><tr><td bgcolor="#fffacd"><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="20" value="" /><input name="submit" type="submit" value="Search ..." /></form><ul><li><a href="index.html" style="font-weight:bold">Main Menu</a></li><li><a href="html/index.html" style="font-weight:bold">Reference Manual</a></li><li><a href="examples/index.html" style="font-weight:bold">Code Examples</a></li><li><a href="guidelines.html">XML Guidelines</a></li><li><a href="tutorial/index.html">Tutorial</a></li><li><a href="xmlreader.html">The Reader Interface</a></li><li><a href="ChangeLog.html">ChangeLog</a></li><li><a href="XSLT.html">XSLT</a></li><li><a href="python.html">Python and bindings</a></li><li><a href="architecture.html">libxml2 architecture</a></li><li><a href="tree.html">The tree output</a></li><li><a href="interface.html">The SAX interface</a></li><li><a href="xmlmem.html">Memory Management</a></li><li><a href="xmlio.html">I/O Interfaces</a></li><li><a href="library.html">The parser interfaces</a></li><li><a href="entities.html">Entities or no entities</a></li><li><a href="namespaces.html">Namespaces</a></li><li><a href="upgrade.html">Upgrading 1.x code</a></li><li><a href="threads.html">Thread safety</a></li><li><a href="DOM.html">DOM Principles</a></li><li><a href="example.html">A real example</a></li><li><a href="xml.html">flat page</a>, <a href="site.xsl">stylesheet</a></li></ul></td></tr></table><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>API Indexes</b></center></td></tr><tr><td bgcolor="#fffacd"><ul><li><a href="APIchunk0.html">Alphabetic</a></li><li><a href="APIconstructors.html">Constructors</a></li><li><a href="APIfunctions.html">Functions/Types</a></li><li><a href="APIfiles.html">Modules</a></li><li><a href="APIsymbols.html">Symbols</a></li></ul></td></tr></table><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Related links</b></center></td></tr><tr><td bgcolor="#fffacd"><ul><li><a href="http://mail.gnome.org/archives/xml/">Mail archive</a></li><li><a href="http://xmlsoft.org/XSLT/">XSLT libxslt</a></li><li><a href="http://phd.cs.unibo.it/gdome2/">DOM gdome2</a></li><li><a href="http://www.aleksey.com/xmlsec/">XML-DSig xmlsec</a></li><li><a href="ftp://xmlsoft.org/">FTP</a></li><li><a href="http://www.zlatkovic.com/projects/libxml/">Windows binaries</a></li><li><a href="http://www.blastwave.org/packages.php/libxml2">Solaris binaries</a></li><li><a href="http://www.explain.com.au/oss/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://libxmlplusplus.sourceforge.net/">C++ bindings</a></li><li><a href="http://www.zend.com/php5/articles/php5-xmlphp.php#Heading4">PHP bindings</a></li><li><a href="http://sourceforge.net/projects/libxml2-pas/">Pascal bindings</a></li><li><a href="http://libxml.rubyforge.org/">Ruby bindings</a></li><li><a href="http://tclxml.sourceforge.net/">Tcl bindings</a></li><li><a href="http://bugzilla.gnome.org/buglist.cgi?product=libxml2">Bug Tracker</a></li></ul></td></tr></table></td></tr></table></td><td valign="top" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%"><tr><td><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table border="0" cellpadding="3" cellspacing="1" width="100%"><tr><td bgcolor="#fffacd"><p>Here is a real size example, where the actual content of the application
+data is not kept in the DOM tree but uses internal structures. It is based on
+a proposal to keep a database of jobs related to Gnome, with an XML based
+storage structure. Here is an <a href="gjobs.xml">XML encoded jobs
+base</a>:</p><pre>&lt;?xml version="1.0"?&gt;
&lt;gjob:Helping xmlns:gjob="http://www.gnome.org/some-location"&gt;
&lt;gjob:Jobs&gt;
@@ -66,14 +66,13 @@ encodedjobsbase</a>:</p><pre>&lt;?xml version="1.0"?&gt;
&lt;/gjob:Job&gt;
&lt;/gjob:Jobs&gt;
-&lt;/gjob:Helping&gt;</pre><p>While loading the XML file into an internal DOM tree is a matter
-ofcallingonly a couple of functions, browsing the tree to gather the data
-andgeneratethe internal structures is harder, and more error prone.</p><p>The suggested principle is to be tolerant with respect to
-theinputstructure. For example, the ordering of the attributes is
-notsignificant,the XML specification is clear about it. It's also usually a
-goodidea not todepend on the order of the children of a given node, unless
-itreally makesthings harder. Here is some code to parse the information for
-aperson:</p><pre>/*
+&lt;/gjob:Helping&gt;</pre><p>While loading the XML file into an internal DOM tree is a matter of
+calling only a couple of functions, browsing the tree to gather the data and
+generate the internal structures is harder, and more error prone.</p><p>The suggested principle is to be tolerant with respect to the input
+structure. For example, the ordering of the attributes is not significant,
+the XML specification is clear about it. It's also usually a good idea not to
+depend on the order of the children of a given node, unless it really makes
+things harder. Here is some code to parse the information for a person:</p><pre>/*
* A person record
*/
typedef struct person {
@@ -114,22 +113,21 @@ DEBUG("parsePerson\n");
}
return(ret);
-}</pre><p>Here are a couple of things to notice:</p><ul><li>Usually a recursive parsing style is the more convenient one: XMLdatais
- by nature subject to repetitive constructs and usually
- exhibitshighlystructured patterns.</li>
- <li>The two arguments of type <em>xmlDocPtr</em>and
- <em>xmlNsPtr</em>,i.e.the pointer to the global XML document and the
- namespace reserved totheapplication. Document wide information are needed
- for example todecodeentities and it's a good coding practice to define a
- namespace foryourapplication set of data and test that the element and
- attributesyou'reanalyzing actually pertains to your application space.
- This isdone by asimple equality test (cur-&gt;ns == ns).</li>
- <li>To retrieve text and attributes value, you can use
- thefunction<em>xmlNodeListGetString</em>to gather all the text and
- entityreferencenodes generated by the DOM output and produce an single
- textstring.</li>
-</ul><p>Here is another piece of code used to parse another level
-ofthestructure:</p><pre>#include &lt;libxml/tree.h&gt;
+}</pre><p>Here are a couple of things to notice:</p><ul><li>Usually a recursive parsing style is the more convenient one: XML data
+ is by nature subject to repetitive constructs and usually exhibits highly
+ structured patterns.</li>
+ <li>The two arguments of type <em>xmlDocPtr</em> and <em>xmlNsPtr</em>,
+ i.e. the pointer to the global XML document and the namespace reserved to
+ the application. Document wide information are needed for example to
+ decode entities and it's a good coding practice to define a namespace for
+ your application set of data and test that the element and attributes
+ you're analyzing actually pertains to your application space. This is
+ done by a simple equality test (cur-&gt;ns == ns).</li>
+ <li>To retrieve text and attributes value, you can use the function
+ <em>xmlNodeListGetString</em> to gather all the text and entity reference
+ nodes generated by the DOM output and produce an single text string.</li>
+</ul><p>Here is another piece of code used to parse another level of the
+structure:</p><pre>#include &lt;libxml/tree.h&gt;
/*
* a Description for a Job
*/
@@ -179,10 +177,10 @@ DEBUG("parseJob\n");
}
return(ret);
-}</pre><p>Once you are used to it, writing this kind of code is quite
-simple,butboring. Ultimately, it could be possible to write stubbers taking
-eitherCdata structure definitions, a set of XML examples or an XML DTD
-andproducethe code needed to import and export the content between C data
-andXMLstorage. This is left as an exercise to the reader :-)</p><p>Feel free to use <a href="example/gjobread.c">the code for the
-fullCparsing example</a>as a template, it is also available with Makefile
-intheGnome CVS base under gnome-xml/example</p><p><a href="bugs.html">Daniel Veillard</a></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table></td></tr></table></body></html>
+}</pre><p>Once you are used to it, writing this kind of code is quite simple, but
+boring. Ultimately, it could be possible to write stubbers taking either C
+data structure definitions, a set of XML examples or an XML DTD and produce
+the code needed to import and export the content between C data and XML
+storage. This is left as an exercise to the reader :-)</p><p>Feel free to use <a href="example/gjobread.c">the code for the full C
+parsing example</a> as a template, it is also available with Makefile in the
+Gnome CVS base under gnome-xml/example</p><p><a href="bugs.html">Daniel Veillard</a></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table></td></tr></table></body></html>
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