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<title>xmlsave: the XML document serializer</title>
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<th width="100%" align="center">libxml2 Reference Manual</th>
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<h2><span class="refentrytitle">xmlsave</span></h2>
<p>xmlsave - the XML document serializer</p>
<p>API to save document or subtree of document </p>
<p>Author(s): Daniel Veillard </p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<pre class="synopsis">typedef struct _xmlSaveCtxt <a href="#xmlSaveCtxt">xmlSaveCtxt</a>;
typedef <a href="libxml2-xmlsave.html#xmlSaveCtxt">xmlSaveCtxt</a> * <a href="#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a>;
typedef enum <a href="#xmlSaveOption">xmlSaveOption</a>;
int <a href="#xmlSaveClose">xmlSaveClose</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt);
long <a href="#xmlSaveDoc">xmlSaveDoc</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-tree.html#xmlDocPtr">xmlDocPtr</a> doc);
int <a href="#xmlSaveFinish">xmlSaveFinish</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt);
int <a href="#xmlSaveFlush">xmlSaveFlush</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt);
int <a href="#xmlSaveSetAttrEscape">xmlSaveSetAttrEscape</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-encoding.html#xmlCharEncodingOutputFunc">xmlCharEncodingOutputFunc</a> escape);
int <a href="#xmlSaveSetEscape">xmlSaveSetEscape</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-encoding.html#xmlCharEncodingOutputFunc">xmlCharEncodingOutputFunc</a> escape);
<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> <a href="#xmlSaveToBuffer">xmlSaveToBuffer</a> (<a href="libxml2-tree.html#xmlBufferPtr">xmlBufferPtr</a> buffer, <br> const char * encoding, <br> int options);
<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> <a href="#xmlSaveToFd">xmlSaveToFd</a> (int fd, <br> const char * encoding, <br> int options);
<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> <a href="#xmlSaveToFilename">xmlSaveToFilename</a> (const char * filename, <br> const char * encoding, <br> int options);
<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> <a href="#xmlSaveToIO">xmlSaveToIO</a> (<a href="libxml2-xmlIO.html#xmlOutputWriteCallback">xmlOutputWriteCallback</a> iowrite, <br> <a href="libxml2-xmlIO.html#xmlOutputCloseCallback">xmlOutputCloseCallback</a> ioclose, <br> void * ioctx, <br> const char * encoding, <br> int options);
long <a href="#xmlSaveTree">xmlSaveTree</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
int <a href="#xmlThrDefIndentTreeOutput">xmlThrDefIndentTreeOutput</a> (int v);
int <a href="#xmlThrDefSaveNoEmptyTags">xmlThrDefSaveNoEmptyTags</a> (int v);
const char * <a href="#xmlThrDefTreeIndentString">xmlThrDefTreeIndentString</a> (const char * v);
</pre>
</div>
<div class="refsect1" lang="en"><h2>Description</h2></div>
<div class="refsect1" lang="en">
<h2>Details</h2>
<div class="refsect2" lang="en">
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveCtxt">Structure </a>xmlSaveCtxt</h3>
<pre class="programlisting">struct _xmlSaveCtxt {
The content of this structure is not made public by the API.
} xmlSaveCtxt;
</pre>
<p></p>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveCtxtPtr">Typedef </a>xmlSaveCtxtPtr</h3>
<pre class="programlisting"><a href="libxml2-xmlsave.html#xmlSaveCtxt">xmlSaveCtxt</a> * xmlSaveCtxtPtr;
</pre>
<p></p>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveOption">Enum </a>xmlSaveOption</h3>
<pre class="programlisting">enum <a href="#xmlSaveOption">xmlSaveOption</a> {
<a name="XML_SAVE_FORMAT">XML_SAVE_FORMAT</a> = 1 /* format save output */
<a name="XML_SAVE_NO_DECL">XML_SAVE_NO_DECL</a> = 2 /* drop the xml declaration */
<a name="XML_SAVE_NO_EMPTY">XML_SAVE_NO_EMPTY</a> = 4 /* no empty tags */
<a name="XML_SAVE_NO_XHTML">XML_SAVE_NO_XHTML</a> = 8 /* disable XHTML1 specific rules */
<a name="XML_SAVE_XHTML">XML_SAVE_XHTML</a> = 16 /* force XHTML1 specific rules */
<a name="XML_SAVE_AS_XML">XML_SAVE_AS_XML</a> = 32 /* force XML serialization on HTML doc */
<a name="XML_SAVE_AS_HTML">XML_SAVE_AS_HTML</a> = 64 /* force HTML serialization on XML doc */
<a name="XML_SAVE_WSNONSIG">XML_SAVE_WSNONSIG</a> = 128 /* format with non-significant whitespace */
};
</pre>
<p></p>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveClose"></a>xmlSaveClose ()</h3>
<pre class="programlisting">int xmlSaveClose (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt)<br>
</pre>
<p>Close a document saving context, i.e. make sure that all bytes have been output and free the associated data.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>ctxt</tt></i>:</span></td>
<td>a document saving context</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of byte written or -1 in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveDoc"></a>xmlSaveDoc ()</h3>
<pre class="programlisting">long xmlSaveDoc (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-tree.html#xmlDocPtr">xmlDocPtr</a> doc)<br>
</pre>
<p>Save a full document to a saving context TODO: The function is not fully implemented yet as it does not return the byte count but 0 instead</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>ctxt</tt></i>:</span></td>
<td>a document saving context</td>
</tr>
<tr>
<td><span class="term"><i><tt>doc</tt></i>:</span></td>
<td>a document</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of byte written or -1 in case of error</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveFinish"></a>xmlSaveFinish ()</h3>
<pre class="programlisting">int xmlSaveFinish (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt)<br>
</pre>
<p>Close a document saving context, i.e. make sure that all bytes have been output and free the associated data. Available since 2.13.0.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>ctxt</tt></i>:</span></td>
<td>a document saving context</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>an <a href="libxml2-xmlerror.html#xmlParserErrors">xmlParserErrors</a> code.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveFlush"></a>xmlSaveFlush ()</h3>
<pre class="programlisting">int xmlSaveFlush (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt)<br>
</pre>
<p>Flush a document saving context, i.e. make sure that all bytes have been output.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>ctxt</tt></i>:</span></td>
<td>a document saving context</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of byte written or -1 in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveSetAttrEscape"></a>xmlSaveSetAttrEscape ()</h3>
<pre class="programlisting">int xmlSaveSetAttrEscape (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-encoding.html#xmlCharEncodingOutputFunc">xmlCharEncodingOutputFunc</a> escape)<br>
</pre>
<p>Set a custom escaping function to be used for text in <a href="libxml2-SAX.html#attribute">attribute</a> content</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>ctxt</tt></i>:</span></td>
<td>a document saving context</td>
</tr>
<tr>
<td><span class="term"><i><tt>escape</tt></i>:</span></td>
<td>the escaping function</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>0 if successful or -1 in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveSetEscape"></a>xmlSaveSetEscape ()</h3>
<pre class="programlisting">int xmlSaveSetEscape (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-encoding.html#xmlCharEncodingOutputFunc">xmlCharEncodingOutputFunc</a> escape)<br>
</pre>
<p>Set a custom escaping function to be used for text in element content</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>ctxt</tt></i>:</span></td>
<td>a document saving context</td>
</tr>
<tr>
<td><span class="term"><i><tt>escape</tt></i>:</span></td>
<td>the escaping function</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>0 if successful or -1 in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveToBuffer"></a>xmlSaveToBuffer ()</h3>
<pre class="programlisting"><a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> xmlSaveToBuffer (<a href="libxml2-tree.html#xmlBufferPtr">xmlBufferPtr</a> buffer, <br> const char * encoding, <br> int options)<br>
</pre>
<p>Create a document saving context serializing to a buffer with the encoding and the options given</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>buffer</tt></i>:</span></td>
<td>a buffer</td>
</tr>
<tr>
<td><span class="term"><i><tt>encoding</tt></i>:</span></td>
<td>the encoding name to use or NULL</td>
</tr>
<tr>
<td><span class="term"><i><tt>options</tt></i>:</span></td>
<td>a set of xmlSaveOptions</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new serialization context or NULL in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveToFd"></a>xmlSaveToFd ()</h3>
<pre class="programlisting"><a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> xmlSaveToFd (int fd, <br> const char * encoding, <br> int options)<br>
</pre>
<p>Create a document saving context serializing to a file descriptor with the encoding and the options given.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>fd</tt></i>:</span></td>
<td>a file descriptor number</td>
</tr>
<tr>
<td><span class="term"><i><tt>encoding</tt></i>:</span></td>
<td>the encoding name to use or NULL</td>
</tr>
<tr>
<td><span class="term"><i><tt>options</tt></i>:</span></td>
<td>a set of xmlSaveOptions</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new serialization context or NULL in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveToFilename"></a>xmlSaveToFilename ()</h3>
<pre class="programlisting"><a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> xmlSaveToFilename (const char * filename, <br> const char * encoding, <br> int options)<br>
</pre>
<p>Create a document saving context serializing to a filename or possibly to an URL (but this is less reliable) with the encoding and the options given.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>filename</tt></i>:</span></td>
<td>a file name or an URL</td>
</tr>
<tr>
<td><span class="term"><i><tt>encoding</tt></i>:</span></td>
<td>the encoding name to use or NULL</td>
</tr>
<tr>
<td><span class="term"><i><tt>options</tt></i>:</span></td>
<td>a set of xmlSaveOptions</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new serialization context or NULL in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveToIO"></a>xmlSaveToIO ()</h3>
<pre class="programlisting"><a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> xmlSaveToIO (<a href="libxml2-xmlIO.html#xmlOutputWriteCallback">xmlOutputWriteCallback</a> iowrite, <br> <a href="libxml2-xmlIO.html#xmlOutputCloseCallback">xmlOutputCloseCallback</a> ioclose, <br> void * ioctx, <br> const char * encoding, <br> int options)<br>
</pre>
<p>Create a document saving context serializing to a file descriptor with the encoding and the options given</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>iowrite</tt></i>:</span></td>
<td>an I/O write function</td>
</tr>
<tr>
<td><span class="term"><i><tt>ioclose</tt></i>:</span></td>
<td>an I/O close function</td>
</tr>
<tr>
<td><span class="term"><i><tt>ioctx</tt></i>:</span></td>
<td>an I/O handler</td>
</tr>
<tr>
<td><span class="term"><i><tt>encoding</tt></i>:</span></td>
<td>the encoding name to use or NULL</td>
</tr>
<tr>
<td><span class="term"><i><tt>options</tt></i>:</span></td>
<td>a set of xmlSaveOptions</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new serialization context or NULL in case of error.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlSaveTree"></a>xmlSaveTree ()</h3>
<pre class="programlisting">long xmlSaveTree (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br> <a href="libxml2-tree.html#xmlNodePtr">xmlNodePtr</a> cur)<br>
</pre>
<p>Save a subtree starting at the node parameter to a saving context TODO: The function is not fully implemented yet as it does not return the byte count but 0 instead</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>ctxt</tt></i>:</span></td>
<td>a document saving context</td>
</tr>
<tr>
<td><span class="term"><i><tt>cur</tt></i>:</span></td>
<td>the top node of the subtree to save</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of byte written or -1 in case of error</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlThrDefIndentTreeOutput"></a>xmlThrDefIndentTreeOutput ()</h3>
<pre class="programlisting">int xmlThrDefIndentTreeOutput (int v)<br>
</pre>
<p></p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>v</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>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlThrDefSaveNoEmptyTags"></a>xmlThrDefSaveNoEmptyTags ()</h3>
<pre class="programlisting">int xmlThrDefSaveNoEmptyTags (int v)<br>
</pre>
<p></p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>v</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>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlThrDefTreeIndentString"></a>xmlThrDefTreeIndentString ()</h3>
<pre class="programlisting">const char * xmlThrDefTreeIndentString (const char * v)<br>
</pre>
<p></p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>v</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>
</div>
<hr>
</div>
</div>
</body>
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