updated files

main.c

+#include <stdio.h>
+#include <string.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+
+#include "xml_parser.h"
+
+
+int main() {
+
+    char filename[] = "villes.xml";
+
+    read_xml(filename);
+
+    return EXIT_SUCCESS;
+}
\ No newline at end of file

xml_parser.c

@@ -44,3 +44,47 @@ void graph_xml_parser(xmlNode * a_node)
     }
 }
 
+int read_xml(const char * filename) {
+
+    // Init libxml
+    xmlInitParser();
+    LIBXML_TEST_VERSION
+
+    // create a parser context
+    xmlParserCtxtPtr ctxt;
+    xmlDocPtr doc = NULL;
+    ctxt = xmlNewParserCtxt();
+
+    if (ctxt == NULL) {
+        fprintf(stderr, "Failed to allocate parser context\n");
+        return EXIT_FAILURE;
+    }
+
+    // parse the file, without error validation
+    doc = xmlCtxtReadFile(ctxt, filename, NULL, XML_PARSE_NOERROR);
+
+    // check if parsing suceeded
+    if (doc == NULL) {
+        fprintf(stderr, "Failed to parse %s\n", filename);
+    } else {
+        /* check if validation suceeded */
+        if (ctxt->valid == 0)
+            fprintf(stderr, "Failed to validate %s\n", filename);
+    }
+
+    xmlNode *root_element = xmlDocGetRootElement(doc);
+
+    // get cities from xml
+    city_xml_parser(root_element);
+
+    // get graph from xml
+    graph_xml_parser(root_element);
+
+    // free the document
+    xmlFreeDoc(doc);
+    // free up the parser context
+    xmlFreeParserCtxt(ctxt);
+
+    return EXIT_SUCCESS;
+
+}
\ No newline at end of file

xml_parser.h

@@ -24,4 +24,6 @@ void ville_xml_parser(xmlNode * a_node);
  */
 void graph_xml_parser(xmlNode * a_node);
 
+int read_xml(const char * filename);
+
 #endif