diff --git a/src/testdir/test15.ok b/src/testdir/test15.ok
new file mode 100644
index 0000000..bc09f5e
--- /dev/null
+++ b/src/testdir/test15.ok
@@ -0,0 +1,111 @@
+test for :left
+a		a
+fa		a
+dfa		a
+sdfa		a
+asdfa		a
+xasdfa		a
+asxxdfa		a
+
+			test for :center
+			 a		a
+		      fa		afd asdf
+			 dfa		a
+		    sdfa		afd asdf
+			 asdfa		a
+	      xasdfa		asdfasdfasdfasdfasdf
+			asxxdfa		a
+
+						  test for :right
+						      a		a
+						     fa		a
+						    dfa		a
+						   sdfa		a
+						  asdfa		a
+						 xasdfa		a
+						asxxdfa		a
+					       asxa;ofa		a
+					      asdfaqwer		a
+					      a		ax
+					     fa		ax
+					    dfa		ax
+					   sdfa		ax
+					  asdfa		ax
+					 xasdfa		ax
+					asxxdfa		ax
+				       asxa;ofa		ax
+				      asdfaqwer		ax
+					      a		axx
+					     fa		axx
+					    dfa		axx
+					   sdfa		axx
+					  asdfa		axx
+					 xasdfa		axx
+					asxxdfa		axx
+				       asxa;ofa		axx
+				      asdfaqwer		axx
+					      a		axxx
+					     fa		axxx
+					    dfa		axxx
+					   sdfa		axxx
+					  asdfa		axxx
+					 xasdfa		axxx
+					asxxdfa		axxx
+				       asxa;ofa		axxx
+				      asdfaqwer		axxx
+					      a		axxxo
+					     fa		axxxo
+					    dfa		axxxo
+					   sdfa		axxxo
+					  asdfa		axxxo
+					 xasdfa		axxxo
+					asxxdfa		axxxo
+				       asxa;ofa		axxxo
+				      asdfaqwer		axxxo
+					      a		axxxoi
+					     fa		axxxoi
+					    dfa		axxxoi
+					   sdfa		axxxoi
+					  asdfa		axxxoi
+					 xasdfa		axxxoi
+					asxxdfa		axxxoi
+				       asxa;ofa		axxxoi
+				      asdfaqwer		axxxoi
+					      a		axxxoik
+					     fa		axxxoik
+					    dfa		axxxoik
+					   sdfa		axxxoik
+					  asdfa		axxxoik
+					 xasdfa		axxxoik
+					asxxdfa		axxxoik
+				       asxa;ofa		axxxoik
+				      asdfaqwer		axxxoik
+					      a		axxxoike
+					     fa		axxxoike
+					    dfa		axxxoike
+					   sdfa		axxxoike
+					  asdfa		axxxoike
+					 xasdfa		axxxoike
+					asxxdfa		axxxoike
+				       asxa;ofa		axxxoike
+				      asdfaqwer		axxxoike
+					      a		axxxoikey
+					     fa		axxxoikey
+					    dfa		axxxoikey
+					   sdfa		axxxoikey
+					  asdfa		axxxoikey
+					 xasdfa		axxxoikey
+					asxxdfa		axxxoikey
+				       asxa;ofa		axxxoikey
+				      asdfaqwer		axxxoikey
+
+xxxxx xx xxxxxx xxxxxxx xxxxxxxxx xxx xxxx xxxxx xxxxx xxx xx
+xxxxxxxxxxxxxxxxxx xxxxx xxxx, xxxx xxxx xxxx xxxx xxx xx xx xx xxxxxxx.
+xxxx xxxx.
+
+> xx xx, xxxx xxxx xxx xxxx xxx xxxxx xxx xxx xxxxxxx xxx xxxxx xxxxxx
+> xxxxxxx: xxxx xxxxxxx, xx xxxxxx xxxx xxxxxxxxxx
+
+aa aa aa aa
+bb bb bb bb
+cc cc cc cc