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      1 <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>F.Code for Add Attribute Example</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="ape.html" title="E.Code for Add Keyword Example"><link rel="next" href="apg.html" title="G.Code for Retrieving Attribute Value Example"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">F.Code for Add Attribute Example</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ape.html">Prev</a></td><th width="60%" align="center"></th><td width="20%" align="right"><a accesskey="n" href="apg.html">Next</a></td></tr></table><hr></div><div class="appendix" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="addattributeappendix"></a>F.Code for Add Attribute Example</h2></div></div><div></div></div><p>
      2       </p><pre class="programlisting">
      3 #include &lt;stdio.h&gt;
      4 #include &lt;string.h&gt;
      5 #include &lt;stdlib.h&gt;
      6 #include &lt;libxml/xmlmemory.h&gt;
      7 #include &lt;libxml/parser.h&gt;
      8 
      9 
     10 xmlDocPtr
     11 parseDoc(char *docname, char *uri) {
     12 
     13 	xmlDocPtr doc;
     14 	xmlNodePtr cur;
     15 	xmlNodePtr newnode;
     16 	xmlAttrPtr newattr;
     17 
     18 	doc = xmlParseFile(docname);
     19 	
     20 	if (doc == NULL ) {
     21 		fprintf(stderr,"Document not parsed successfully. \n");
     22 		return (NULL);
     23 	}
     24 	
     25 	cur = xmlDocGetRootElement(doc);
     26 	
     27 	if (cur == NULL) {
     28 		fprintf(stderr,"empty document\n");
     29 		xmlFreeDoc(doc);
     30 		return (NULL);
     31 	}
     32 	
     33 	if (xmlStrcmp(cur-&gt;name, (const xmlChar *) "story")) {
     34 		fprintf(stderr,"document of the wrong type, root node != story");
     35 		xmlFreeDoc(doc);
     36 		return (NULL);
     37 	}
     38 	
     39 	newnode = xmlNewTextChild (cur, NULL, "reference", NULL);
     40 	newattr = xmlNewProp (newnode, "uri", uri);
     41 	return(doc);
     42 }
     43 
     44 int
     45 main(int argc, char **argv) {
     46 
     47 	char *docname;
     48 	char *uri;
     49 	xmlDocPtr doc;
     50 
     51 	if (argc &lt;= 2) {
     52 		printf("Usage: %s docname, uri\n", argv[0]);
     53 		return(0);
     54 	}
     55 
     56 	docname = argv[1];
     57 	uri = argv[2];
     58 	doc = parseDoc (docname, uri);
     59 	if (doc != NULL) {
     60 		xmlSaveFormatFile (docname, doc, 1);
     61 		xmlFreeDoc(doc);
     62 	}
     63 	return (1);
     64 }
     65 
     66 </pre><p>
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     68