EP RScript 修复因跳跃导致的变量层次混乱

Convention/[RScript]/Matcher/BackMatcher.cs

@@ -6,11 +6,11 @@ namespace Convention.RScript.Matcher
     {
         public bool Match(string expression, ref RScriptSentence sentence)
         {
-            Regex LabelRegex = new(@"^back\s*\(\s*([a-zA-Z_][a-zA-Z0-9_]*)\s*\)$");
+            Regex LabelRegex = new(@"back\s*\(\s*(.+)\s*\)");
             var LabelMatch = LabelRegex.Match(expression);
             if (LabelMatch.Success)
             {
-                sentence.mode = RScriptSentence.Mode.Label;
+                sentence.mode = RScriptSentence.Mode.Backpoint;
                 sentence.content = LabelMatch.Groups[1].Value;
                 return true;
             }