Add generic app directive catch all

Author: JoeRobich

grammars/csharp.tmLanguage

@@ -8986,6 +8986,10 @@
             <key>include</key>
             <string>#preprocessor-app-directive-sdk</string>
           </dict>
+          <dict>
+            <key>include</key>
+            <string>#preprocessor-app-directive-generic</string>
+          </dict>
         </array>
       </dict>
       <key>preprocessor-app-directive-package</key>
@@ -9129,6 +9133,19 @@
           </dict>
         </array>
       </dict>
+      <key>preprocessor-app-directive-generic</key>
+      <dict>
+        <key>match</key>
+        <string>\b(.*)?\s*</string>
+        <key>captures</key>
+        <dict>
+          <key>1</key>
+          <dict>
+            <key>name</key>
+            <string>string.unquoted.preprocessor.message.cs</string>
+          </dict>
+        </dict>
+      </dict>
       <key>preprocessor-expression</key>
       <dict>
         <key>patterns</key>

grammars/csharp.tmLanguage.cson

@@ -5369,6 +5369,9 @@ repository:
       {
         include: "#preprocessor-app-directive-sdk"
       }
+      {
+        include: "#preprocessor-app-directive-generic"
+      }
     ]
   "preprocessor-app-directive-package":
     match: "\\b(package)\\b\\s*([_[:alpha:]][_.[:alnum:]]*)?(@)?(.*)?\\s*"
@@ -5433,6 +5436,11 @@ repository:
         match: "[_[:alpha:]][_[:alnum:]]*"
       }
     ]
+  "preprocessor-app-directive-generic":
+    match: "\\b(.*)?\\s*"
+    captures:
+      "1":
+        name: "string.unquoted.preprocessor.message.cs"
   "preprocessor-expression":
     patterns: [
       {

src/csharp.tmLanguage.yml

@@ -3501,6 +3501,7 @@ repository:
       - include: '#preprocessor-app-directive-property'
       - include: '#preprocessor-app-directive-project'
       - include: '#preprocessor-app-directive-sdk'
+      - include: '#preprocessor-app-directive-generic'
 
   preprocessor-app-directive-package:
     match: \b(package)\b\s*([_[:alpha:]][_.[:alnum:]]*)?(@)?(.*)?\s*
@@ -3545,6 +3546,11 @@ repository:
     - name: entity.name.variable.preprocessor.symbol.cs
       match: '[_[:alpha:]][_[:alnum:]]*'
 
+  preprocessor-app-directive-generic:
+    match: \b(.*)?\s*
+    captures:
+      '1': { name: string.unquoted.preprocessor.message.cs }
+
   preprocessor-expression:
     patterns:
     - begin: \(

test/preprocessor.tests.ts

@@ -839,5 +839,26 @@ public ActionResult Register()
                 Token.PreprocessorMessage("1.0.0"),
             ]);
         });
+
+        it("#:", async () => {
+            const input = `#:`;
+            const tokens = await tokenize(input);
+
+            tokens.should.deep.equal([
+                Token.Punctuation.Hash,
+                Token.Punctuation.Colon,
+            ]);
+        });
+
+        it("#: with generic message", async () => {
+            const input = `#:this is a generic directive`;
+            const tokens = await tokenize(input);
+
+            tokens.should.deep.equal([
+                Token.Punctuation.Hash,
+                Token.Punctuation.Colon,
+                Token.PreprocessorMessage("this is a generic directive"),
+            ]);
+        });
     });
 });