Datafile User Input in Liquibase

How could I save user input for datafile path in the variable TS_DIRECTORY (see below)  and  have Liquibase use that input in creation of tablespace?

 

 

The following two bolded lines cannot be used in Liquibase.  There must be an argument that one could use in the properties file that passes the value to the tablespace statement in SQL.   I have shown the tablespace statement within

 

 

PROMPT Enter the tablespace_dir (e.g.: F:\Oracle\xxx\yyyy)
accept TS_DIRECTORY char prompt 'Enter the tablespace dir: ’ default none

 

 


CREATE TABLESPACE some-name

DATAFILE
&&TS_DIRECTORY/vvvvvv.dbf’ SIZE xxxM AUTOEXTEND ON NEXT xxxxM MAXSIZE UNLIMITED
LOGGING …