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</style><title>Module c14n from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#000000" 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></h1><h2>Module c14n from 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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://garypennington.net/libxml2/">Solaris binaries</a></li><li><a href="http://www.zveno.com/open_source/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://sourceforge.net/projects/libxml2-pas/">Pascal 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"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libxml-SAX2.html"><img src="left.png" width="24" height="24" border="0" alt="Prev" /></a></td><th align="left"><a href="libxml-SAX2.html">SAX2</a></th><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The XML C parser and toolkit of Gnome</a></th><th align="right"><a href="libxml-catalog.html">catalog</a></th><td><a accesskey="n" href="libxml-catalog.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>the c14n modules provides a "Canonical XML" implementation</p><h2>Table of Contents</h2><pre class="programlisting">int <a href="#xmlC14NDocDumpMemory">xmlC14NDocDumpMemory</a> (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** doc_txt_ptr)</pre>
<pre class="programlisting">int <a href="#xmlC14NDocSave">xmlC14NDocSave</a> (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> const char * filename, <br /> int compression)</pre>
<pre class="programlisting">int <a href="#xmlC14NDocSaveTo">xmlC14NDocSaveTo</a> (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> <a href="libxml-tree.html#xmlOutputBufferPtr">xmlOutputBufferPtr</a> buf)</pre>
<pre class="programlisting">int <a href="#xmlC14NExecute">xmlC14NExecute</a> (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-c14n.html#xmlC14NIsVisibleCallback">xmlC14NIsVisibleCallback</a> is_visible_callback, <br /> void * user_data, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> <a href="libxml-tree.html#xmlOutputBufferPtr">xmlOutputBufferPtr</a> buf)</pre>
<pre class="programlisting">Function type: <a href="#xmlC14NIsVisibleCallback">xmlC14NIsVisibleCallback</a>
int <a href="#xmlC14NIsVisibleCallback">xmlC14NIsVisibleCallback</a> (void * user_data, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> parent)
</pre>
<h2>Description</h2>
<h3><a name="xmlC14NDocDumpMemory" id="xmlC14NDocDumpMemory"></a>Function: xmlC14NDocDumpMemory</h3><pre class="programlisting">int xmlC14NDocDumpMemory (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** doc_txt_ptr)<br />
</pre><p>Dumps the canonized image of given XML document into memory. For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or "Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>the XML document for canonization</td></tr><tr><td><span class="term"><i><tt>nodes</tt></i>:</span></td><td>the nodes set to be included in the canonized image or NULL if all document nodes should be included</td></tr><tr><td><span class="term"><i><tt>exclusive</tt></i>:</span></td><td>the exclusive flag (0 - non-exclusive canonicalization; otherwise - exclusive canonicalization)</td></tr><tr><td><span class="term"><i><tt>inclusive_ns_prefixes</tt></i>:</span></td><td>the list of inclusive namespace prefixes ended with a NULL or NULL if there is no inclusive namespaces (only for exclusive canonicalization, ignored otherwise)</td></tr><tr><td><span class="term"><i><tt>with_comments</tt></i>:</span></td><td>include comments in the result (!=0) or not (==0)</td></tr><tr><td><span class="term"><i><tt>doc_txt_ptr</tt></i>:</span></td><td>the memory pointer for allocated canonical XML text; the caller of this functions is responsible for calling xmlFree() to free allocated memory</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of bytes written on success or a negative value on fail</td></tr></tbody></table></div><h3><a name="xmlC14NDocSave" id="xmlC14NDocSave"></a>Function: xmlC14NDocSave</h3><pre class="programlisting">int xmlC14NDocSave (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> const char * filename, <br /> int compression)<br />
</pre><p>Dumps the canonized image of given XML document into the file. For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or "Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>the XML document for canonization</td></tr><tr><td><span class="term"><i><tt>nodes</tt></i>:</span></td><td>the nodes set to be included in the canonized image or NULL if all document nodes should be included</td></tr><tr><td><span class="term"><i><tt>exclusive</tt></i>:</span></td><td>the exclusive flag (0 - non-exclusive canonicalization; otherwise - exclusive canonicalization)</td></tr><tr><td><span class="term"><i><tt>inclusive_ns_prefixes</tt></i>:</span></td><td>the list of inclusive namespace prefixes ended with a NULL or NULL if there is no inclusive namespaces (only for exclusive canonicalization, ignored otherwise)</td></tr><tr><td><span class="term"><i><tt>with_comments</tt></i>:</span></td><td>include comments in the result (!=0) or not (==0)</td></tr><tr><td><span class="term"><i><tt>filename</tt></i>:</span></td><td>the filename to store canonical XML image</td></tr><tr><td><span class="term"><i><tt>compression</tt></i>:</span></td><td>the compression level (zlib requred): -1 - libxml default, 0 - uncompressed, &gt;0 - compression level</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of bytes written success or a negative value on fail</td></tr></tbody></table></div><h3><a name="xmlC14NDocSaveTo" id="xmlC14NDocSaveTo"></a>Function: xmlC14NDocSaveTo</h3><pre class="programlisting">int xmlC14NDocSaveTo (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> <a href="libxml-tree.html#xmlOutputBufferPtr">xmlOutputBufferPtr</a> buf)<br />
</pre><p>Dumps the canonized image of given XML document into the provided buffer. For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or "Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>the XML document for canonization</td></tr><tr><td><span class="term"><i><tt>nodes</tt></i>:</span></td><td>the nodes set to be included in the canonized image or NULL if all document nodes should be included</td></tr><tr><td><span class="term"><i><tt>exclusive</tt></i>:</span></td><td>the exclusive flag (0 - non-exclusive canonicalization; otherwise - exclusive canonicalization)</td></tr><tr><td><span class="term"><i><tt>inclusive_ns_prefixes</tt></i>:</span></td><td>the list of inclusive namespace prefixes ended with a NULL or NULL if there is no inclusive namespaces (only for exclusive canonicalization, ignored otherwise)</td></tr><tr><td><span class="term"><i><tt>with_comments</tt></i>:</span></td><td>include comments in the result (!=0) or not (==0)</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>the output buffer to store canonical XML; this buffer MUST have encoder==NULL because C14N requires UTF-8 output</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>non-negative value on success or a negative value on fail</td></tr></tbody></table></div><h3><a name="xmlC14NExecute" id="xmlC14NExecute"></a>Function: xmlC14NExecute</h3><pre class="programlisting">int xmlC14NExecute (<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br /> <a href="libxml-c14n.html#xmlC14NIsVisibleCallback">xmlC14NIsVisibleCallback</a> is_visible_callback, <br /> void * user_data, <br /> int exclusive, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> ** inclusive_ns_prefixes, <br /> int with_comments, <br /> <a href="libxml-tree.html#xmlOutputBufferPtr">xmlOutputBufferPtr</a> buf)<br />
</pre><p>Dumps the canonized image of given XML document into the provided buffer. For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or "Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>the XML document for canonization</td></tr><tr><td><span class="term"><i><tt>is_visible_callback</tt></i>:</span></td><td>the function to use to determine is node visible or not</td></tr><tr><td><span class="term"><i><tt>user_data</tt></i>:</span></td><td>the first parameter for @is_visible_callback function (in most cases, it is nodes set)</td></tr><tr><td><span class="term"><i><tt>exclusive</tt></i>:</span></td><td>the exclusive flag (0 - non-exclusive canonicalization; otherwise - exclusive canonicalization)</td></tr><tr><td><span class="term"><i><tt>inclusive_ns_prefixes</tt></i>:</span></td><td>the list of inclusive namespace prefixes ended with a NULL or NULL if there is no inclusive namespaces (only for exclusive canonicalization, ignored otherwise)</td></tr><tr><td><span class="term"><i><tt>with_comments</tt></i>:</span></td><td>include comments in the result (!=0) or not (==0)</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>the output buffer to store canonical XML; this buffer MUST have encoder==NULL because C14N requires UTF-8 output</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>non-negative value on success or a negative value on fail</td></tr></tbody></table></div><h3><a name="xmlC14NIsVisibleCallback" id="xmlC14NIsVisibleCallback"></a>Function type: xmlC14NIsVisibleCallback</h3><pre class="programlisting">Function type: xmlC14NIsVisibleCallback
int xmlC14NIsVisibleCallback (void * user_data, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> parent)
</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>user_data</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>node</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>parent</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br />
<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>