Commit 218ed39d authored by MDT 2004 John Fleck's avatar MDT 2004 John Fleck Committed by John Fleck
Browse files

doc/tutorial/xmltutorial.xml fix lack of cast in Xpath example


Thu May 27 19:47:48 MDT 2004 John Fleck <jfleck@inkstain.net>

	* doc/tutorial/xmltutorial.xml fix lack of cast in Xpath example
	* doc/tutorial/*.html, xmltutorial.pdf rebuild html, pdf
parent 64453bc6
Thu May 27 19:47:48 MDT 2004 John Fleck <jfleck@inkstain.net>
* doc/tutorial/xmltutorial.xml fix lack of cast in Xpath example
* doc/tutorial/*.html, xmltutorial.pdf rebuild html, pdf
2004-05-25 Aleksey Sanin <aleksey@aleksey.com>
 
* c14n.c: fixed c14n bug with serializing attribute namespaces
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>A.Compilation</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s09.html" title="Encoding Conversion"><link rel="next" href="apb.html" title="B.Sample Document"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">A.Compilation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s09.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="apb.html">Next</a></td></tr></table><hr></div><div class="appendix" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="compilation"></a>A.Compilation</h2></div></div><div></div></div><p><a class="indexterm" name="id2509671"></a>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>A.Compilation</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s09.html" title="Encoding Conversion"><link rel="next" href="apb.html" title="B.Sample Document"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">A.Compilation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s09.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="apb.html">Next</a></td></tr></table><hr></div><div class="appendix" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="compilation"></a>A.Compilation</h2></div></div><div></div></div><p><a class="indexterm" name="id2902089"></a>
<span class="application">Libxml</span> includes a script,
<span class="application">xml2-config</span>, that can be used to generate
flags for compilation and linking of programs written with the
......
......@@ -36,7 +36,7 @@ main(int argc, char **argv) {
char *docname;
xmlDocPtr doc;
xmlChar *xpath = ("//keyword");
xmlChar *xpath = (xmlChar*) "//keyword";
xmlNodeSetPtr nodeset;
xmlXPathObjectPtr result;
int i;
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>I.Acknowledgements</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="aph.html" title="H.Code for Encoding Conversion Example"><link rel="next" href="ix01.html" title="Index"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">I.Acknowledgements</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="aph.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ix01.html">Next</a></td></tr></table><hr></div><div class="appendix" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="id2510287"></a>I.Acknowledgements</h2></div></div><div></div></div><p>A number of people have generously offered feedback, code and
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>I.Acknowledgements</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="aph.html" title="H.Code for Encoding Conversion Example"><link rel="next" href="ix01.html" title="Index"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">I.Acknowledgements</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="aph.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ix01.html">Next</a></td></tr></table><hr></div><div class="appendix" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="id2902708"></a>I.Acknowledgements</h2></div></div><div></div></div><p>A number of people have generously offered feedback, code and
suggested improvements to this tutorial. In no particular order:
<span class="simplelist">Daniel Veillard, Marcus Labib Iskander, Christopher R. Harris, Igor Zlatkovic, Niraj Tolia, David Turover</span>
</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="aph.html">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"><a accesskey="n" href="ix01.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">H.Code for Encoding Conversion Example</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">Index</td></tr></table></div></body></html>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Data Types</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="index.html" title="Libxml Tutorial"><link rel="next" href="ar01s03.html" title="Parsing the file"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Data Types</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="index.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s03.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialdatatypes"></a>Data Types</h2></div></div><div></div></div><p><span class="application">Libxml</span> declares a number of data types we
will encounter repeatedly, hiding the messy stuff so you do not have to deal
with it unless you have some specific need.</p><p>
</p><div class="variablelist"><dl><dt><span class="term"><a class="indexterm" name="id2496072"></a>
</p><div class="variablelist"><dl><dt><span class="term"><a class="indexterm" name="id2840608"></a>
<a href="http://xmlsoft.org/html/libxml-tree.html#XMLCHAR" target="_top">xmlChar</a></span></dt><dd><p>A basic replacement for char, a byte in a UTF-8 encoded
string. If your data uses another encoding, it must be converted to
UTF-8 for use with <span class="application">libxml's</span>
functions. More information on encoding is available on the <a href="http://www.xmlsoft.org/encoding.html" target="_top"><span class="application">libxml</span> encoding support web page</a>.</p></dd><dt><span class="term"><a class="indexterm" name="id2448173"></a>
functions. More information on encoding is available on the <a href="http://www.xmlsoft.org/encoding.html" target="_top"><span class="application">libxml</span> encoding support web page</a>.</p></dd><dt><span class="term"><a class="indexterm" name="id2840654"></a>
<a href="http://xmlsoft.org/html/libxml-tree.html#XMLDOC" target="_top">xmlDoc</a></span></dt><dd><p>A structure containing the tree created by a parsed doc. <a href="http://xmlsoft.org/html/libxml-tree.html#XMLDOCPTR" target="_top">xmlDocPtr</a>
is a pointer to the structure.</p></dd><dt><span class="term"><a class="indexterm" name="id2448206"></a>
is a pointer to the structure.</p></dd><dt><span class="term"><a class="indexterm" name="id2840689"></a>
<a href="http://xmlsoft.org/html/libxml-tree.html#XMLNODEPTR" target="_top">xmlNodePtr</a>
and <a href="http://xmlsoft.org/html/libxml-tree.html#XMLNODE" target="_top">xmlNode</a></span></dt><dd><p>A structure containing a single node. <a href="http://xmlsoft.org/html/libxml-tree.html#XMLNODEPTR" target="_top">xmlNodePtr</a>
is a pointer to the structure, and is used in traversing the document tree.</p></dd></dl></div><p>
......
......@@ -31,7 +31,7 @@ Parsing the file requires only the name of the file and a single
interact with individual nodes).</p></td></tr><tr><td width="5%" valign="top" align="left"><a href="#checkparseerror"><img src="images/callouts/4.png" alt="4" border="0"></a> </td><td valign="top" align="left"><p>Check to see that the document was successfully parsed. If it
was not, <span class="application">libxml</span> will at this point
register an error and stop.
</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td><th align="left">Note</th></tr><tr><td colspan="2" align="left" valign="top"><p><a class="indexterm" name="id2447307"></a>
</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td><th align="left">Note</th></tr><tr><td colspan="2" align="left" valign="top"><p><a class="indexterm" name="id2839760"></a>
One common example of an error at this point is improper
handling of encoding. The <span class="acronym">XML</span> standard requires
documents stored with an encoding other than UTF-8 or UTF-16 to
......@@ -43,5 +43,5 @@ One common example of an error at this point is improper
</p></td></tr><tr><td width="5%" valign="top" align="left"><a href="#getrootelement"><img src="images/callouts/5.png" alt="5" border="0"></a> </td><td valign="top" align="left"><p>Retrieve the document's root element.</p></td></tr><tr><td width="5%" valign="top" align="left"><a href="#checkemptyerror"><img src="images/callouts/6.png" alt="6" border="0"></a> </td><td valign="top" align="left"><p>Check to make sure the document actually contains something.</p></td></tr><tr><td width="5%" valign="top" align="left"><a href="#checkroottype"><img src="images/callouts/7.png" alt="7" border="0"></a> </td><td valign="top" align="left"><p>In our case, we need to make sure the document is the right
type. "story" is the root type of the documents used in this
tutorial.</p></td></tr></table></div><p>
<a class="indexterm" name="id2447385"></a>
<a class="indexterm" name="id2839838"></a>
</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ar01s02.html">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"><a accesskey="n" href="ar01s04.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Data Types</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">Retrieving Element Content</td></tr></table></div></body></html>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Retrieving Element Content</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s03.html" title="Parsing the file"><link rel="next" href="ar01s05.html" title="Using XPath to Retrieve Element Content"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Retrieving Element Content</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s03.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s05.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialgettext"></a>Retrieving Element Content</h2></div></div><div></div></div><p><a class="indexterm" name="id2447408"></a>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Retrieving Element Content</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s03.html" title="Parsing the file"><link rel="next" href="ar01s05.html" title="Using XPath to Retrieve Element Content"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Retrieving Element Content</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s03.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s05.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialgettext"></a>Retrieving Element Content</h2></div></div><div></div></div><p><a class="indexterm" name="id2839861"></a>
Retrieving the content of an element involves traversing the document
tree until you find what you are looking for. In this case, we are looking
for an element called "keyword" contained within element called "story". The
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Writing element content</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s05.html" title="Using XPath to Retrieve Element Content"><link rel="next" href="ar01s07.html" title="Writing Attribute"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Writing element content</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s05.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s07.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialwritingcontent"></a>Writing element content</h2></div></div><div></div></div><p><a class="indexterm" name="id2508968"></a>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Writing element content</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s05.html" title="Using XPath to Retrieve Element Content"><link rel="next" href="ar01s07.html" title="Writing Attribute"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Writing element content</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s05.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s07.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialwritingcontent"></a>Writing element content</h2></div></div><div></div></div><p><a class="indexterm" name="id2901386"></a>
Writing element content uses many of the same steps we used above
&#8212; parsing the document and walking the tree. We parse the document,
then traverse the tree to find the place we want to insert our element. For
......@@ -21,7 +21,7 @@ parseStory (xmlDocPtr doc, xmlNodePtr cur, char *keyword) {
current node pointer's location in the
tree, specified by <tt class="varname">cur</tt>.</p></td></tr></table></div><p>
</p><p>
<a class="indexterm" name="id2509052"></a>
<a class="indexterm" name="id2901470"></a>
Once the node has been added, we would like to write the document to
file. Is you want the element to have a namespace, you can add it here as
well. In our case, the namespace is NULL.
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Writing Attribute</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s06.html" title="Writing element content"><link rel="next" href="ar01s08.html" title="Retrieving Attributes"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Writing Attribute</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s06.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s08.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialwritingattribute"></a>Writing Attribute</h2></div></div><div></div></div><p><a class="indexterm" name="id2509094"></a>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Writing Attribute</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s06.html" title="Writing element content"><link rel="next" href="ar01s08.html" title="Retrieving Attributes"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Writing Attribute</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s06.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s08.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialwritingattribute"></a>Writing Attribute</h2></div></div><div></div></div><p><a class="indexterm" name="id2901512"></a>
Writing an attribute is similar to writing text to a new element. In
this case, we'll add a reference <span class="acronym">URI</span> to our
document. Full code:<a href="apf.html" title="F.Code for Add Attribute Example">AppendixF, <i>Code for Add Attribute Example</i></a>.</p><p>
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Retrieving Attributes</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s07.html" title="Writing Attribute"><link rel="next" href="ar01s09.html" title="Encoding Conversion"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Retrieving Attributes</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s07.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s09.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialattribute"></a>Retrieving Attributes</h2></div></div><div></div></div><p><a class="indexterm" name="id2509236"></a>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Retrieving Attributes</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s07.html" title="Writing Attribute"><link rel="next" href="ar01s09.html" title="Encoding Conversion"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Retrieving Attributes</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s07.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s09.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialattribute"></a>Retrieving Attributes</h2></div></div><div></div></div><p><a class="indexterm" name="id2901654"></a>
Retrieving the value of an attribute is similar to the previous
example in which we retrieved a node's text contents. In this case we'll
extract the value of the <span class="acronym">URI</span> we added in the previous
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Encoding Conversion</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s08.html" title="Retrieving Attributes"><link rel="next" href="apa.html" title="A. Compilation"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Encoding Conversion</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s08.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="apa.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialconvert"></a>Encoding Conversion</h2></div></div><div></div></div><p><a class="indexterm" name="id2509349"></a>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Encoding Conversion</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ar01s08.html" title="Retrieving Attributes"><link rel="next" href="apa.html" title="A. Compilation"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Encoding Conversion</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ar01s08.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="apa.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="xmltutorialconvert"></a>Encoding Conversion</h2></div></div><div></div></div><p><a class="indexterm" name="id2901766"></a>
Data encoding compatibility problems are one of the most common
difficulties encountered by programmers new to <span class="acronym">XML</span> in
general and <span class="application">libxml</span> in particular. Thinking
......
......@@ -35,7 +35,7 @@ main(int argc, char **argv) {
char *docname;
xmlDocPtr doc;
xmlChar *xpath = ("//keyword");
xmlChar *xpath = (xmlChar*) "//keyword";
xmlNodeSetPtr nodeset;
xmlXPathObjectPtr result;
int i;
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Libxml Tutorial</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="next" href="ar01s02.html" title="Data Types"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Libxml Tutorial</th></tr><tr><td width="20%" align="left"></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s02.html">Next</a></td></tr></table><hr></div><div class="article" lang="en"><div class="titlepage"><div><div><h1 class="title"><a name="id2393988"></a>Libxml Tutorial</h1></div><div><div class="author"><h3 class="author"><span class="firstname">John</span> <span class="surname">Fleck</span></h3></div></div><div><p class="copyright">Copyright 2002, 2003 John Fleck</p></div><div><div class="revhistory"><table border="1" width="100%" summary="Revision history"><tr><th align="left" valign="top" colspan="2"><b>Revision History</b></th></tr><tr><td align="left">Revision 1</td><td align="left">June 4, 2002</td></tr><tr><td align="left" colspan="2">Initial draft</td></tr><tr><td align="left">Revision 2</td><td align="left">June 12, 2002</td></tr><tr><td align="left" colspan="2">retrieving attribute value added</td></tr><tr><td align="left">Revision 3</td><td align="left">Aug. 31, 2002</td></tr><tr><td align="left" colspan="2">freeing memory fix</td></tr><tr><td align="left">Revision 4</td><td align="left">Nov. 10, 2002</td></tr><tr><td align="left" colspan="2">encoding discussion added</td></tr><tr><td align="left">Revision 5</td><td align="left">Dec. 15, 2002</td></tr><tr><td align="left" colspan="2">more memory freeing changes</td></tr><tr><td align="left">Revision 6</td><td align="left">Jan. 26. 2003</td></tr><tr><td align="left" colspan="2">add index</td></tr><tr><td align="left">Revision 7</td><td align="left">April 25, 2003</td></tr><tr><td align="left" colspan="2">add compilation appendix</td></tr><tr><td align="left">Revision 8</td><td align="left">July 24, 2003</td></tr><tr><td align="left" colspan="2">add XPath example</td></tr><tr><td align="left">Revision 9</td><td align="left">Feb. 14, 2004</td></tr><tr><td align="left" colspan="2">Fix bug in XPath example</td></tr></table></div></div></div><div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="index.html#introduction">Introduction</a></dt><dt><a href="ar01s02.html">Data Types</a></dt><dt><a href="ar01s03.html">Parsing the file</a></dt><dt><a href="ar01s04.html">Retrieving Element Content</a></dt><dt><a href="ar01s05.html">Using XPath to Retrieve Element Content</a></dt><dt><a href="ar01s06.html">Writing element content</a></dt><dt><a href="ar01s07.html">Writing Attribute</a></dt><dt><a href="ar01s08.html">Retrieving Attributes</a></dt><dt><a href="ar01s09.html">Encoding Conversion</a></dt><dt>A. <a href="apa.html">Compilation</a></dt><dt>B. <a href="apb.html">Sample Document</a></dt><dt>C. <a href="apc.html">Code for Keyword Example</a></dt><dt>D. <a href="apd.html">Code for XPath Example</a></dt><dt>E. <a href="ape.html">Code for Add Keyword Example</a></dt><dt>F. <a href="apf.html">Code for Add Attribute Example</a></dt><dt>G. <a href="apg.html">Code for Retrieving Attribute Value Example</a></dt><dt>H. <a href="aph.html">Code for Encoding Conversion Example</a></dt><dt>I. <a href="api.html">Acknowledgements</a></dt></dl></div><div class="abstract"><p class="title"><b>Abstract</b></p><p>Libxml is a freely licensed C language library for handling
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Libxml Tutorial</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="next" href="ar01s02.html" title="Data Types"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Libxml Tutorial</th></tr><tr><td width="20%" align="left"></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="ar01s02.html">Next</a></td></tr></table><hr></div><div class="article" lang="en"><div class="titlepage"><div><div><h1 class="title"><a name="id2788097"></a>Libxml Tutorial</h1></div><div><div class="author"><h3 class="author"><span class="firstname">John</span> <span class="surname">Fleck</span></h3></div></div><div><p class="copyright">Copyright 2002, 2003 John Fleck</p></div><div><div class="revhistory"><table border="1" width="100%" summary="Revision history"><tr><th align="left" valign="top" colspan="2"><b>Revision History</b></th></tr><tr><td align="left">Revision 1</td><td align="left">June 4, 2002</td></tr><tr><td align="left" colspan="2">Initial draft</td></tr><tr><td align="left">Revision 2</td><td align="left">June 12, 2002</td></tr><tr><td align="left" colspan="2">retrieving attribute value added</td></tr><tr><td align="left">Revision 3</td><td align="left">Aug. 31, 2002</td></tr><tr><td align="left" colspan="2">freeing memory fix</td></tr><tr><td align="left">Revision 4</td><td align="left">Nov. 10, 2002</td></tr><tr><td align="left" colspan="2">encoding discussion added</td></tr><tr><td align="left">Revision 5</td><td align="left">Dec. 15, 2002</td></tr><tr><td align="left" colspan="2">more memory freeing changes</td></tr><tr><td align="left">Revision 6</td><td align="left">Jan. 26. 2003</td></tr><tr><td align="left" colspan="2">add index</td></tr><tr><td align="left">Revision 7</td><td align="left">April 25, 2003</td></tr><tr><td align="left" colspan="2">add compilation appendix</td></tr><tr><td align="left">Revision 8</td><td align="left">July 24, 2003</td></tr><tr><td align="left" colspan="2">add XPath example</td></tr><tr><td align="left">Revision 9</td><td align="left">Feb. 14, 2004</td></tr><tr><td align="left" colspan="2">Fix bug in XPath example</td></tr></table></div></div></div><div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="index.html#introduction">Introduction</a></dt><dt><a href="ar01s02.html">Data Types</a></dt><dt><a href="ar01s03.html">Parsing the file</a></dt><dt><a href="ar01s04.html">Retrieving Element Content</a></dt><dt><a href="ar01s05.html">Using XPath to Retrieve Element Content</a></dt><dt><a href="ar01s06.html">Writing element content</a></dt><dt><a href="ar01s07.html">Writing Attribute</a></dt><dt><a href="ar01s08.html">Retrieving Attributes</a></dt><dt><a href="ar01s09.html">Encoding Conversion</a></dt><dt>A. <a href="apa.html">Compilation</a></dt><dt>B. <a href="apb.html">Sample Document</a></dt><dt>C. <a href="apc.html">Code for Keyword Example</a></dt><dt>D. <a href="apd.html">Code for XPath Example</a></dt><dt>E. <a href="ape.html">Code for Add Keyword Example</a></dt><dt>F. <a href="apf.html">Code for Add Attribute Example</a></dt><dt>G. <a href="apg.html">Code for Retrieving Attribute Value Example</a></dt><dt>H. <a href="aph.html">Code for Encoding Conversion Example</a></dt><dt>I. <a href="api.html">Acknowledgements</a></dt></dl></div><div class="abstract"><p class="title"><b>Abstract</b></p><p>Libxml is a freely licensed C language library for handling
<span class="acronym">XML</span>, portable across a large number of platforms. This
tutorial provides examples of its basic functions.</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="introduction"></a>Introduction</h2></div></div><div></div></div><p>Libxml is a C language library implementing functions for reading,
creating and manipulating <span class="acronym">XML</span> data. This tutorial
......
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Index</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="api.html" title="I.Acknowledgements"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Index</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="api.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"></td></tr></table><hr></div><div class="index"><div class="titlepage"><div><div><h2 class="title"><a name="id2510579"></a>Index</h2></div></div><div></div></div><div class="index"><div class="indexdiv"><h3>A</h3><dl><dt>attribute</dt><dd><dl><dt>retrieving value, <a href="ar01s08.html">Retrieving Attributes</a></dt><dt>writing, <a href="ar01s07.html">Writing Attribute</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>C</h3><dl><dt>compiler flags, <a href="apa.html">Compilation</a></dt></dl></div><div class="indexdiv"><h3>E</h3><dl><dt>element</dt><dd><dl><dt>retrieving content, <a href="ar01s04.html">Retrieving Element Content</a></dt><dt>writing content, <a href="ar01s06.html">Writing element content</a></dt></dl></dd><dt>encoding, <a href="ar01s03.html">Parsing the file</a>, <a href="ar01s09.html">Encoding Conversion</a></dt></dl></div><div class="indexdiv"><h3>F</h3><dl><dt>file</dt><dd><dl><dt>parsing, <a href="ar01s03.html">Parsing the file</a>-<a href="ar01s03.html">Parsing the file</a></dt><dt>saving, <a href="ar01s06.html">Writing element content</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>X</h3><dl><dt>xmlChar, <a href="ar01s02.html">Data Types</a></dt><dt>xmlDoc, <a href="ar01s02.html">Data Types</a></dt><dt>xmlNodePtr, <a href="ar01s02.html">Data Types</a></dt></dl></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="api.html">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"></td></tr><tr><td width="40%" align="left" valign="top">I.Acknowledgements</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"></td></tr></table></div></body></html>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Index</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="api.html" title="I.Acknowledgements"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Index</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="api.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"></td></tr></table><hr></div><div class="index"><div class="titlepage"><div><div><h2 class="title"><a name="id2902957"></a>Index</h2></div></div><div></div></div><div class="index"><div class="indexdiv"><h3>A</h3><dl><dt>attribute</dt><dd><dl><dt>retrieving value, <a href="ar01s08.html">Retrieving Attributes</a></dt><dt>writing, <a href="ar01s07.html">Writing Attribute</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>C</h3><dl><dt>compiler flags, <a href="apa.html">Compilation</a></dt></dl></div><div class="indexdiv"><h3>E</h3><dl><dt>element</dt><dd><dl><dt>retrieving content, <a href="ar01s04.html">Retrieving Element Content</a></dt><dt>writing content, <a href="ar01s06.html">Writing element content</a></dt></dl></dd><dt>encoding, <a href="ar01s03.html">Parsing the file</a>, <a href="ar01s09.html">Encoding Conversion</a></dt></dl></div><div class="indexdiv"><h3>F</h3><dl><dt>file</dt><dd><dl><dt>parsing, <a href="ar01s03.html">Parsing the file</a>-<a href="ar01s03.html">Parsing the file</a></dt><dt>saving, <a href="ar01s06.html">Writing element content</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>X</h3><dl><dt>xmlChar, <a href="ar01s02.html">Data Types</a></dt><dt>xmlDoc, <a href="ar01s02.html">Data Types</a></dt><dt>xmlNodePtr, <a href="ar01s02.html">Data Types</a></dt></dl></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="api.html">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"></td></tr><tr><td width="40%" align="left" valign="top">I.Acknowledgements</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"></td></tr></table></div></body></html>
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