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-rw-r--r--sqlparse/engine/grouping.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/sqlparse/engine/grouping.py b/sqlparse/engine/grouping.py
index cae5d23..f9ca6b4 100644
--- a/sqlparse/engine/grouping.py
+++ b/sqlparse/engine/grouping.py
@@ -43,7 +43,9 @@ def _group_left_right(tlist, m, cls,
def _group_matching(tlist, cls):
"""Groups Tokens that have beginning and end."""
- idx = 1 if imt(tlist, i=cls) else 0
+ [_group_matching(sgroup, cls) for sgroup in tlist.get_sublists()
+ if not isinstance(sgroup, cls)]
+ idx = 1 if isinstance(tlist, cls) else 0
opens = []