libxml2-xmlsave.html
1 <?xml version="1.0" encoding="UTF-8"?> 2 <html> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> 5 <title>xmlsave: the XML document serializer</title> 6 <meta name="generator" content="Libxml2 devhelp stylesheet"/> 7 <link rel="start" href="index.html" title="libxml2 Reference Manual"/> 8 <link rel="up" href="general.html" title="API"/> 9 <link rel="stylesheet" href="style.css" type="text/css"/> 10 <link rel="chapter" href="general.html" title="API"/> 11 </head> 12 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13 <table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"> 14 <tr valign="middle"> 15 <td> 16 <a accesskey="p" href="libxml2-xmlregexp.html"> 17 <img src="left.png" width="24" height="24" border="0" alt="Prev"/> 18 </a> 19 </td> 20 <td> 21 <a accesskey="u" href="general.html"> 22 <img src="up.png" width="24" height="24" border="0" alt="Up"/> 23 </a> 24 </td> 25 <td> 26 <a accesskey="h" href="index.html"> 27 <img src="home.png" width="24" height="24" border="0" alt="Home"/> 28 </a> 29 </td> 30 <td> 31 <a accesskey="n" href="libxml2-xmlschemas.html"> 32 <img src="right.png" width="24" height="24" border="0" alt="Next"/> 33 </a> 34 </td> 35 <th width="100%" align="center">libxml2 Reference Manual</th> 36 </tr> 37 </table> 38 <h2> 39 <span class="refentrytitle">xmlsave</span> 40 </h2> 41 <p>xmlsave - the XML document serializer</p> 42 <p>API to save document or subtree of document </p> 43 <p>Author(s): Daniel Veillard </p> 44 <div class="refsynopsisdiv"> 45 <h2>Synopsis</h2> 46 <pre class="synopsis">typedef enum <a href="#xmlSaveOption">xmlSaveOption</a>; 47 typedef struct _xmlSaveCtxt <a href="#xmlSaveCtxt">xmlSaveCtxt</a>; 48 typedef <a href="libxml2-xmlsave.html#xmlSaveCtxt">xmlSaveCtxt</a> * <a href="#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a>; 49 <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); 50 <a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> <a href="#xmlSaveToFd">xmlSaveToFd</a> (int fd, <br/> const char * encoding, <br/> int options); 51 int <a href="#xmlSaveClose">xmlSaveClose</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt); 52 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); 53 <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); 54 <a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> <a href="#xmlSaveToFilename">xmlSaveToFilename</a> (const char * filename, <br/> const char * encoding, <br/> int options); 55 int <a href="#xmlSaveFlush">xmlSaveFlush</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt); 56 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); 57 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); 58 long <a href="#xmlSaveTree">xmlSaveTree</a> (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt, <br/> <a href="libxml2-tree.html#xmlNodePtr">xmlNodePtr</a> node); 59 </pre> 60 </div> 61 <div class="refsect1" lang="en"> 62 <h2>Description</h2> 63 </div> 64 <div class="refsect1" lang="en"> 65 <h2>Details</h2> 66 <div class="refsect2" lang="en"> 67 <div class="refsect2" lang="en"><h3><a name="xmlSaveCtxt">Structure </a>xmlSaveCtxt</h3><pre class="programlisting">struct _xmlSaveCtxt { 68 The content of this structure is not made public by the API. 69 } xmlSaveCtxt; 70 </pre><p/> 71 </div> 72 <hr/> 73 <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; 74 </pre><p/> 75 </div> 76 <hr/> 77 <div class="refsect2" lang="en"><h3><a name="xmlSaveOption">Enum </a>xmlSaveOption</h3><pre class="programlisting">enum <a href="#xmlSaveOption">xmlSaveOption</a> { 78 <a name="XML_SAVE_FORMAT">XML_SAVE_FORMAT</a> = 1 /* format save output */ 79 <a name="XML_SAVE_NO_DECL">XML_SAVE_NO_DECL</a> = 2 /* drop the xml declaration */ 80 <a name="XML_SAVE_NO_EMPTY">XML_SAVE_NO_EMPTY</a> = 4 /* no empty tags */ 81 <a name="XML_SAVE_NO_XHTML">XML_SAVE_NO_XHTML</a> = 8 /* disable XHTML1 specific rules */ 82 <a name="XML_SAVE_XHTML">XML_SAVE_XHTML</a> = 16 /* force XHTML1 specific rules */ 83 <a name="XML_SAVE_AS_XML">XML_SAVE_AS_XML</a> = 32 /* force XML serialization on HTML doc */ 84 <a name="XML_SAVE_AS_HTML">XML_SAVE_AS_HTML</a> = 64 /* force HTML serialization on XML doc */ 85 <a name="XML_SAVE_WSNONSIG">XML_SAVE_WSNONSIG</a> = 128 /* format with non-significant whitespace */ 86 }; 87 </pre><p/> 88 </div> 89 <hr/> 90 <div class="refsect2" lang="en"><h3><a name="xmlSaveClose"/>xmlSaveClose ()</h3><pre class="programlisting">int xmlSaveClose (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt)<br/> 91 </pre><p>Close a document saving context, i.e. make sure that all bytes have been output and free the associated data.</p> 92 <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> 93 <hr/> 94 <div class="refsect2" lang="en"><h3><a name="xmlSaveDoc"/>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/> 95 </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> 96 <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> 97 <hr/> 98 <div class="refsect2" lang="en"><h3><a name="xmlSaveFlush"/>xmlSaveFlush ()</h3><pre class="programlisting">int xmlSaveFlush (<a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> ctxt)<br/> 99 </pre><p>Flush a document saving context, i.e. make sure that all bytes have been output.</p> 100 <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> 101 <hr/> 102 <div class="refsect2" lang="en"><h3><a name="xmlSaveSetAttrEscape"/>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/> 103 </pre><p>Set a custom escaping function to be used for text in <a href="libxml2-SAX.html#attribute">attribute</a> content</p> 104 <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> 105 <hr/> 106 <div class="refsect2" lang="en"><h3><a name="xmlSaveSetEscape"/>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/> 107 </pre><p>Set a custom escaping function to be used for text in element content</p> 108 <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> 109 <hr/> 110 <div class="refsect2" lang="en"><h3><a name="xmlSaveToBuffer"/>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/> 111 </pre><p>Create a document saving context serializing to a buffer with the encoding and the options given</p> 112 <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> 113 <hr/> 114 <div class="refsect2" lang="en"><h3><a name="xmlSaveToFd"/>xmlSaveToFd ()</h3><pre class="programlisting"><a href="libxml2-xmlsave.html#xmlSaveCtxtPtr">xmlSaveCtxtPtr</a> xmlSaveToFd (int fd, <br/> const char * encoding, <br/> int options)<br/> 115 </pre><p>Create a document saving context serializing to a file descriptor with the encoding and the options given.</p> 116 <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> 117 <hr/> 118 <div class="refsect2" lang="en"><h3><a name="xmlSaveToFilename"/>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/> 119 </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> 120 <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> 121 <hr/> 122 <div class="refsect2" lang="en"><h3><a name="xmlSaveToIO"/>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/> 123 </pre><p>Create a document saving context serializing to a file descriptor with the encoding and the options given</p> 124 <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> 125 <hr/> 126 <div class="refsect2" lang="en"><h3><a name="xmlSaveTree"/>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> node)<br/> 127 </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> 128 <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>node</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> 129 <hr/> 130 </div> 131 </div> 132 </body> 133 </html>