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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>E. Code for Retrieving Attribute Value Example</title><meta name="generator" content="DocBook XSL Stylesheets V1.48"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="apd.html" title="D. Code for Add Attribute 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">E. Code for Retrieving Attribute Value Example</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="apd.html">Prev</a>�</td><th width="60%" align="center">�</th><td width="20%" align="right">�</td></tr></table><hr></div><div class="appendix"><h2 class="title" style="clear: both"><a name="getattributeappendix"></a>E. Code for Retrieving Attribute Value Example</h2><p>
      <pre class="programlisting">
#include &lt;stdio.h&gt;
#include &lt;string.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;libxml/xmlmemory.h&gt;
#include &lt;libxml/parser.h&gt;

void
getReference (xmlDocPtr doc, xmlNodePtr cur) {

	cur = cur-&gt;xmlChildrenNode;
	while (cur != NULL) {
	    if ((!xmlStrcmp(cur-&gt;name, (const xmlChar *)&quot;reference&quot;))) {
		    printf(&quot;uri: %s\n&quot;, xmlGetProp(cur, &quot;uri&quot;));
		    }
	    cur = cur-&gt;next;
	}
    return;
}


void
parseDoc(char *docname) {

	xmlDocPtr doc;
	xmlNodePtr cur;

	doc = xmlParseFile(docname);
	
	if (doc == NULL ) {
		fprintf(stderr,&quot;Document not parsed successfully. \n&quot;);
		return;
	}
	
	cur = xmlDocGetRootElement(doc);
	
	if (cur == NULL) {
		fprintf(stderr,&quot;empty document\n&quot;);
		xmlFreeDoc(doc);
		return;
	}
	
	if (xmlStrcmp(cur-&gt;name, (const xmlChar *) &quot;story&quot;)) {
		fprintf(stderr,&quot;document of the wrong type, root node != story&quot;);
		xmlFreeDoc(doc);
		return;
	}
	
	getReference (doc, cur);
	xmlFreeDoc(doc);
	return;
}

int
main(int argc, char **argv) {

	char *docname;

	if (argc &lt;= 1) {
		printf(&quot;Usage: %s docname\n&quot;, argv[0]);
		return(0);
	}

	docname = argv[1];
	parseDoc (docname);
	
	return (1);
}

</pre>
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