contain template variable errors

src/grammar.json

@@ -7454,7 +7454,7 @@
                   "value": -1,
                   "content": {
                     "type": "PATTERN",
-                    "value": "[^\\s%]+"
+                    "value": "(?:[^\\s%}]|\\}[^\\s%}])+"
                   }
                 }
               },
@@ -7480,7 +7480,7 @@
                           "value": -1,
                           "content": {
                             "type": "PATTERN",
-                            "value": "[^\\s%]+"
+                            "value": "(?:[^\\s%}]|\\}[^\\s%}])+"
                           }
                         }
                       },
@@ -7518,7 +7518,7 @@
               "value": -1,
               "content": {
                 "type": "PATTERN",
-                "value": "[^\\s%]+"
+                "value": "(?:[^\\s%}]|\\}[^\\s%}])+"
               }
             }
           }