Reapply fix for case within paranthesis

2 files changed, 3 insertions, 9 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 = []
 
diff --git a/tests/test_regressions.py b/tests/test_regressions.py
index 3a3406b..b55939a 100644
--- a/tests/test_regressions.py
+++ b/tests/test_regressions.py
@@ -312,11 +312,3 @@ def test_issue207_runaway_format():
                            "          2 as two,",
                            "          3",
                            "   from dual) t0"])
-
-
-@pytest.mark.xfail(reason="broke with new indexing")
-def test_case_within_parenthesis():
-    # see issue #164
-    s = '(case when 1=1 then 2 else 5 end)'
-    p = sqlparse.parse(s)[0]
-    assert isinstance(p[0][1], sql.Case)