Add punctuations highlighting

queries/highlights.scm

@@ -9,6 +9,22 @@
 (integer_literal ("-") @operator)
 ; }}}
 
+; Punctuation {{{
+[
+ ","
+ ":"
+] @punctuation.delimiter
+
+[
+ "("
+ ")"
+ "["
+ "]"
+ "{"
+ "}"
+] @punctuation.bracket
+; }}}
+
 ; Literal {{{
 (boolean_literal) @boolean
 

test/highlight/punctuation.bp

@@ -0,0 +1,15 @@
+foo (
+    // <- punctuation.bracket
+    bar = [
+        //^ punctuation.bracket
+        {
+        // <- punctuation.bracket
+            key: "value",
+            // ^ punctuation.delimiter
+            //          ^ punctuation.delimiter
+        },
+        // <- punctuation.bracket
+    ]
+    // <- punctuation.bracket
+)
+// <- punctuation.bracket