updated codemirror to 5.57.0

libraries/codemirror/mode/xml/xml.js

@@ -390,6 +390,17 @@ CodeMirror.defineMode("xml", function(editorConf, config_) {
     skipAttribute: function(state) {
       if (state.state == attrValueState)
         state.state = attrState
+    },
+
+    xmlCurrentTag: function(state) {
+      return state.tagName ? {name: state.tagName, close: state.type == "closeTag"} : null
+    },
+
+    xmlCurrentContext: function(state) {
+      var context = []
+      for (var cx = state.context; cx; cx = cx.prev)
+        if (cx.tagName) context.push(cx.tagName)
+      return context.reverse()
     }
   };
 });