1  <![CDATA[
       2  #include <stdio.h>
       3  #include <string.h>
       4  #include <stdlib.h>
       5  #include <libxml/xmlmemory.h>
       6  #include <libxml/parser.h>
       7  
       8  
       9  xmlDocPtr
      10  parseDoc(char *docname, char *uri) {
      11  
      12  	xmlDocPtr doc;
      13  	xmlNodePtr cur;
      14  	xmlNodePtr newnode;
      15  	xmlAttrPtr newattr;
      16  
      17  	doc = xmlParseFile(docname);
      18  	
      19  	if (doc == NULL ) {
      20  		fprintf(stderr,"Document not parsed successfully. \n");
      21  		return (NULL);
      22  	}
      23  	
      24  	cur = xmlDocGetRootElement(doc);
      25  	
      26  	if (cur == NULL) {
      27  		fprintf(stderr,"empty document\n");
      28  		xmlFreeDoc(doc);
      29  		return (NULL);
      30  	}
      31  	
      32  	if (xmlStrcmp(cur->name, (const xmlChar *) "story")) {
      33  		fprintf(stderr,"document of the wrong type, root node != story");
      34  		xmlFreeDoc(doc);
      35  		return (NULL);
      36  	}
      37  	
      38  	newnode = xmlNewTextChild (cur, NULL, "reference", NULL);
      39  	newattr = xmlNewProp (newnode, "uri", uri);
      40  	return(doc);
      41  }
      42  
      43  int
      44  main(int argc, char **argv) {
      45  
      46  	char *docname;
      47  	char *uri;
      48  	xmlDocPtr doc;
      49  
      50  	if (argc <= 2) {
      51  		printf("Usage: %s docname, uri\n", argv[0]);
      52  		return(0);
      53  	}
      54  
      55  	docname = argv[1];
      56  	uri = argv[2];
      57  	doc = parseDoc (docname, uri);
      58  	if (doc != NULL) {
      59  		xmlSaveFormatFile (docname, doc, 1);
      60  		xmlFreeDoc(doc);
      61  	}
      62  	return (1);
      63  }
      64  ]]>