尝试新增命名空间的命名, 用于具有名称的块或是函数

Matcher/NamespaceMater.cs

@@ -1,4 +1,6 @@
-namespace Convention.RScript.Matcher
+using System.Text.RegularExpressions;
+
+namespace Convention.RScript.Matcher
 {
     public class NamespaceMater : IRSentenceMatcher
     {
@@ -14,6 +16,21 @@
                 sentence.mode = RScriptSentence.Mode.ExitNamespace;
                 return true;
             }
+            else if (expression.StartsWith("namespace"))
+            {
+                sentence.mode = RScriptSentence.Mode.NamedSpace;
+                Regex regex = new(@"namespace\s*\(([a-zA-Z_][a-zA-Z0-9_]*)\)");
+                var match = regex.Match(expression);
+                if (match.Success)
+                {
+                    sentence.content = match.Groups[1].Value;
+                    return true;
+                }
+                else
+                {
+                    throw new RScriptRuntimeException("Invalid namespace declaration", -1);
+                }
+            }
             return false;
         }
     }