[Added] Angular v17 Control-Block Syntax (#24)

* Update NgxHTML.sublime-syntax

* Update NgxHTML.sublime-syntax

Author: thecodechef

NgxHTML.sublime-syntax

@@ -8,10 +8,14 @@ version: 2
 
 extends: Packages/HTML/HTML.sublime-syntax
 
+variables:
+  angular_blocks: (?<=\@)\b(?xi:for | if | else | else if | switch | case | empty | placeholder | defer | default | error | loading)\b
+
 contexts:
   main:
     - meta_prepend: true
     - include: interpolation
+    - include: angular-blocks
 
   interpolation:
     - match: '{{'
@@ -82,3 +86,33 @@ contexts:
       push:
         - tag-event-attribute-meta
         - tag-event-attribute-assignment
+
+
+  angular-blocks:
+    - match: '(@){{angular_blocks}}'
+      scope: keyword.control.control-flow.html
+      captures:
+        1: punctuation.definition.keyword.html
+    - match: \(
+      scope: punctuation.section.group.begin.html
+      push:
+        - meta_scope: meta.group.html
+        - match: \b(async)\b
+          scope: keyword.control.html
+        - match: \b(track|of|prefetch on|on|prefetch when|when|as)\b
+          scope: keyword.operator.word.html
+        - match: \b(minimum|after)\b(\?)
+          captures:
+            1: keyword.operator.word.html
+            2: keyword.control.question.html
+        - match: \)
+          scope: punctuation.section.group.end.html
+          pop: 1
+    - match: \{
+      scope: punctuation.section.block.begin.html
+      push:
+        - meta_scope: meta.block.html
+        - include: main
+        - match: \}
+          scope: punctuation.section.block.end.html
+          pop: 1