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<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="SHORTCUT ICON" href="/favicon.ico" /><style type="text/css"> TD {font-family: Verdana,Arial,Helvetica} BODY {font-family: Verdana,Arial,Helvetica; margin-top: 2em; margin-left: 0em; margin-right: 0em} 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><style type="text/css"> div.deprecated pre.programlisting {border-style: double;border-color:red} pre.programlisting {border-style: double;background: #EECFA1} </style><title>Module c14n from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" 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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">Enum <a href="#xmlC14NMode">xmlC14NMode</a> </pre><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 mode, <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 mode, <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 mode, <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 mode, <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>Enum <a name="xmlC14NMode" id="xmlC14NMode">xmlC14NMode</a></h3><pre class="programlisting">Enum xmlC14NMode { <a name="XML_C14N_1_0" id="XML_C14N_1_0">XML_C14N_1_0</a> = 0 : Origianal C14N 1.0 spec <a name="XML_C14N_EXCLUSIVE_1_0" id="XML_C14N_EXCLUSIVE_1_0">XML_C14N_EXCLUSIVE_1_0</a> = 1 : Exclusive C14N 1.0 spec <a name="XML_C14N_1_1" id="XML_C14N_1_1">XML_C14N_1_1</a> = 2 : C14N 1.1 spec } </pre><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 mode, <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>mode</tt></i>:</span></td><td>the c14n mode (see @xmlC14NMode)</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 mode, <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>mode</tt></i>:</span></td><td>the c14n mode (see @xmlC14NMode)</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, >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 mode, <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>mode</tt></i>:</span></td><td>the c14n mode (see @xmlC14NMode)</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 mode, <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>mode</tt></i>:</span></td><td>the c14n mode (see @xmlC14NMode)</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>Signature for a C14N callback on visible nodes</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>user data</td></tr><tr><td><span class="term"><i><tt>node</tt></i>:</span></td><td>the curent node</td></tr><tr><td><span class="term"><i><tt>parent</tt></i>:</span></td><td>the parent node</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if the node should be included</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>