fix: nested function call highlighting

Author: heyzec

syntaxes/source.tmLanguage.yaml

@@ -209,15 +209,17 @@ repository:
   function-call:
     patterns:
       - name: meta.function-call
-        match: (\w+)\((.+)\)
+        match: (\w+)(\()([^)]*)(\))
         captures:
           "1": { name: entity.name.function }
-          "2": { patterns: [{ include: "#expression" }] }
+          "2": { name: meta.brace.round }
+          "3": { patterns: [{ include: "#expression" }] }
+          "4": { name: meta.brace.round }
       - name: meta.function-call
         begin: (\w+)(\()
         beginCaptures:
-          "0": { name: entity.name.function }
-          "1": { name: meta.brace.round }
+          "1": { name: entity.name.function }
+          "2": { name: meta.brace.round }
         end: \)
         endCaptures:
           "0": { name: meta.brace.round }

tests/syntaxes/function-call.test

@@ -0,0 +1,28 @@
+// SYNTAX TEST "source.source" "function-call"
+
+f()
+// <- entity.name.function
+// <~-- meta.brace.round
+
+f(1)
+// <- entity.name.function
+// <~- meta.brace.round
+// <~~- constant.numeric.integer.decimal
+// ^ meta.brace.round
+
+f(1, "hello")
+// <- entity.name.function
+// <~- meta.brace.round
+// <~~- constant.numeric.integer.decimal
+//   ^^^^^^^ string.quoted.double
+//          ^ meta.brace.round
+
+f(
+// <~- meta.brace.round
+)
+// <- meta.brace.round
+
+f(
+// <~- meta.brace.round
+g())
+// <~--- meta.brace.round