diff -ur v23/ezmd.py v24/ezmd.py
--- v23/ezmd.py	2019-10-06 13:12:35.000000000 +0900
+++ v24/ezmd.py	2019-10-07 04:19:38.000000000 +0900
@@ -10,8 +10,10 @@
 is_all_ge_n = lambda s, c, n: all( map( lambda c_: c_ == c, s ) ) and len(s) >= n
 
 def next_mode_switch(e):
-	if (e.mode, e.s) == ('pre', '/'):
-		(e.s, e.next_mode) = (None, 'p')
+	e.next_mode = e.mode
+	if e.mode == 'pre':
+		if e.s == '/':
+			(e.s, e.next_mode) = (None, 'p')
 	elif e.mode in heads and not e.s.strip():
 		(e.s, e.next_mode) = (None, 'p' if e.tmp else e.mode)
 	elif e.s in modes:
@@ -20,8 +22,6 @@
 		e.next_mode = 'hr'
 	elif e.mode == 'hr':
 		e.next_mode = 'hr' if is_all_ge_n(e.s, '-', 4) else 'p'
-	else:
-		e.next_mode = e.mode
 
 class Empty:
 	def __init__(self, dic={}):