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
