L1	input.adoc	/^== L1$/;"	s	chapter:[A B]
L1_b	input.adoc	/^== L1_b$/;"	s	chapter:[A B]
L2	input.adoc	/^=== L2$/;"	S	section:L1
L3 Title	input.adoc	/^==== L3 Title$/;"	t	subsection:L2
L4 Title [ ]	input.adoc	/^===== L4 Title [ ]$/;"	T	subsubsection:L3 Title
[ #bad] L2_b Title [,]	input.adoc	/^=== [ #bad] L2_b Title [,]$/;"	S	section:L1_b
[A B]	input.adoc	/^= [A B]$/;"	c
[foo][bar] L2_c Title [[]	input.adoc	/^=== [foo][bar] L2_c Title [[] ===$/;"	S	section:L1_b
good_anchor	input.adoc	/^[[good_anchor, ]]$/;"	a	section:L1
