Fix command auto-fill

Author: ShelDeng

sscom_at/plugins/dbg.py

@@ -40,24 +40,32 @@
         _format_frame = None
 
 def _extract_words_from_json(path):
-    """Recursively collect dict keys and string leaf values from a JSON file."""
+    """Split leaf strings by space into three completion levels:
+       level-1 (pos 0): 'at'
+       level-2 (pos 1): 'mmi', 'mode', 'btcfm', ...
+       level-3 (pos 2+): 'pwron', 'start', 'a2dp', ...
+    All tokens go into one flat word list for the completer.
+    """
     try:
         with open(path, "r", encoding="utf-8") as f:
             data = json.load(f)
     except Exception:
         return []
-    words = set()
-    def _walk(obj):
+    leaves = []
+    def _collect(obj):
         if isinstance(obj, dict):
-            for k, v in obj.items():
-                words.add(str(k))
-                _walk(v)
+            for v in obj.values():
+                _collect(v)
         elif isinstance(obj, list):
             for item in obj:
-                _walk(item)
+                _collect(item)
         elif isinstance(obj, str) and obj.strip():
-            words.add(obj.strip())
-    _walk(data)
+            leaves.append(obj.strip())
+    _collect(data)
+    words = set()
+    for cmd in leaves:
+        for token in cmd.split():
+            words.add(token)
     return sorted(words)