added udm local type method

udm_citeproc.module

@@ -13,6 +13,7 @@
  */
 function udm_citeproc_convert_mods_to_citeproc_jsons_alter(&$output, $mods) {
   module_load_include('inc', 'citeproc', 'includes/converter');  
+  $output['type'] = udm_citeproc_local_to_csl_type($mods);
    if(empty($output['author'])){
      $names = udm_convert_mods_to_citeproc_json_names($mods);
      $output = array_merge($output, $names);
@@ -248,3 +249,38 @@ function udm_convert_mods_to_citeproc_json_name_role(SimpleXMLElement $name, arr
   }
   return $default_role;
 }
+
+/**
+ * Converts our local types that mostly came from refworks to CSL types.
+ *
+ * @param SimpleXML $mods
+ * @return string
+ *   The CSL type.
+ */
+function udm_citeproc_local_to_csl_type($mods) {
+  $genre = $mods->xpath("//mods:mods[1]/mods:genre");
+
+  if(empty($genre)){
+    return convert_mods_to_citeproc_json_type($mods);
+  }
+  $term = strtolower(trim((string)$genre[0]));
+  switch ($term) {
+    case 'article scientifique':
+    case '':
+      return 'article-journal';
+    case 'book chapter':
+    case 'book section':
+    case 'book, section':
+    case 'chapitre de livre':
+      return 'chapter';
+    case 'book, whole':
+    case 'livre':
+      return 'book';
+    case 'conference proceedings':
+    case 'conference abstract':
+    case 'Contribution à un congrès, un colloque, une conférence':
+      return 'paper-conference';
+    default:
+      return convert_mods_to_citeproc_json_type($mods);
+  }
+}