f

SYS/cli_parsing.py

@@ -13,12 +13,14 @@ from typing import Any, Dict, List, Optional, Set, Tuple
 # stubs if prompt_toolkit is not available so imports remain safe for testing.
 try:
     from prompt_toolkit.document import Document
-    from prompt_toolkit.lexers import Lexer
+    from prompt_toolkit.lexers import Lexer as _PTK_Lexer
 except Exception:  # pragma: no cover - optional dependency
     Document = object  # type: ignore
+    # Fallback to a simple object when prompt_toolkit is not available
+    _PTK_Lexer = object  # type: ignore
 
-    class Lexer:  # simple fallback base
-        pass
+# Expose a stable name used by the rest of the module
+Lexer = _PTK_Lexer
 
 
 class SelectionSyntax:
@@ -216,19 +218,19 @@ class SelectionFilterSyntax:
         if ":" in s:
             parts = [p.strip() for p in s.split(":")]
             if len(parts) == 2 and all(p.isdigit() for p in parts):
-                m, sec = parts
-                return max(0, int(m) * 60 + int(sec))
+                m_str, sec_str = parts
+                return max(0, int(m_str) * 60 + int(sec_str))
             if len(parts) == 3 and all(p.isdigit() for p in parts):
-                h, m, sec = parts
-                return max(0, int(h) * 3600 + int(m) * 60 + int(sec))
+                h_str, m_str, sec_str = parts
+                return max(0, int(h_str) * 3600 + int(m_str) * 60 + int(sec_str))
 
         # token format: 1h2m3s (tokens can appear in any combination)
         total = 0
         found = False
-        for m in SelectionFilterSyntax._DUR_TOKEN_RE.finditer(s):
+        for match in SelectionFilterSyntax._DUR_TOKEN_RE.finditer(s):
             found = True
-            n = int(m.group(1))
-            unit = m.group(2).lower()
+            n = int(match.group(1))
+            unit = match.group(2).lower()
             if unit == "h":
                 total += n * 3600
             elif unit == "m":