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</style><title>Upgrading 1.x code</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>Upgrading 1.x code</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 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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://opencsw.org/packages/libxml2">Solaris binaries</a></li><li><a href="http://www.explain.com.au/oss/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://lxml.de/">lxml Python bindings</a></li><li><a href="http://cpan.uwinnipeg.ca/dist/XML-LibXML">Perl bindings</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>Incompatible changes:</p><p>Version 2 of libxml2 is the first version introducing serious backward
-incompatible changes. The main goals were:</p><ul>
- <li>a general cleanup. A number of mistakes inherited from the very early
+incompatible changes. The main goals were:</p><ul><li>a general cleanup. A number of mistakes inherited from the very early
versions couldn't be changed due to compatibility constraints. Example
the "childs" element in the nodes.</li>
<li>Uniformization of the various nodes, at least for their header and link
changed to compile against version 2.x of libxml. Here is a list of changes
that I have collected, they may not be sufficient, so in case you find other
change which are required, <a href="mailto:Daniel.Veillard@w3.org">drop me a
-mail</a>:</p><ol>
- <li>The package name have changed from libxml to libxml2, the library name
+mail</a>:</p><ol><li>The package name have changed from libxml to libxml2, the library name
is now -lxml2 . There is a new xml2-config script which should be used to
select the right parameters libxml2</li>
<li>Node <strong>childs</strong> field has been renamed
and formatting the document content becomes significant. So they are
reported by SAX and if your using the DOM tree, corresponding nodes are
generated. Too approach can be taken:
- <ol>
- <li>lazy one, use the compatibility call
+ <ol><li>lazy one, use the compatibility call
<strong>xmlKeepBlanksDefault(0)</strong> but be aware that you are
relying on a special (and possibly broken) set of heuristics of
libxml to detect ignorable blanks. Don't complain if it breaks or
nodes. You can spot them using the commodity function
<strong>xmlIsBlankNode(node)</strong> returning 1 for such blank
nodes.</li>
- </ol>
- <p>Note also that with the new default the output functions don't add any
+ </ol><p>Note also that with the new default the output functions don't add any
extra indentation when saving a tree in order to be able to round trip
(read and save) without inflating the document with extra formatting
chars.</p>
byte of the head of the document available for character detection.</li>
</ol><h3>Ensuring both libxml-1.x and libxml-2.x compatibility</h3><p>Two new version of libxml (1.8.11) and libxml2 (2.3.4) have been released
to allow smooth upgrade of existing libxml v1code while retaining
-compatibility. They offers the following:</p><ol>
- <li>similar include naming, one should use
+compatibility. They offers the following:</p><ol><li>similar include naming, one should use
<strong>#include<libxml/...></strong> in both cases.</li>
<li>similar identifiers defined via macros for the child and root fields:
respectively <strong>xmlChildrenNode</strong> and
<li>a new macro <strong>LIBXML_TEST_VERSION</strong> which should be
inserted once in the client code</li>
</ol><p>So the roadmap to upgrade your existing libxml applications is the
-following:</p><ol>
- <li>install the libxml-1.8.8 (and libxml-devel-1.8.8) packages</li>
+following:</p><ol><li>install the libxml-1.8.8 (and libxml-devel-1.8.8) packages</li>
<li>find all occurrences where the xmlDoc <strong>root</strong> field is
used and change it to <strong>xmlRootNode</strong></li>
<li>similarly find all occurrences where the xmlNode
projects / platform / upstream / libxml2.git / blobdiff