Update cylc/flow/config.py

Author: wxtim

cylc/flow/config.py

@@ -2289,16 +2289,11 @@ def check_outputs(self, terminals: Iterable[str]) -> None:
 
         Raises: WorkflowConfigError if a custom output is not defined.
         """
-        terminal_outputs = []
-        for terminal in terminals:
-            if ':' in terminal:
-                task = re.search(TaskID.NAME_RE, terminal)
-                task = task.group() if task else ''
-                qualifier = re.search(GraphParser._RE_QUAL, terminal)
-                if qualifier:
-                    qualifier_str = qualifier[0].strip(':')
-                if qualifier_str and qualifier_str not in TASK_QUALIFIERS:
-                    terminal_outputs.append((task, qualifier_str))
+        terminal_outputs = [
+            (a[0].strip("!"), b)
+            for a in (t.split(':') for t in terminals if ":" in t)
+            if (b := a[1].strip("?")) not in TASK_QUALIFIERS
+        ]
 
         for task, output in terminal_outputs:
             if output not in self.cfg['runtime'][task]['outputs']: