Conditionally Repeat block
This command terminates a block of infobox lines which are to be repeated until the condition specified on a preceding $repeat command is true. Command blocks surrounded by repeat/until commands may not be nested. This command is only valid in infobox (.IIF) files and in conditional text.
The syntax for the ‘condition’ is the same as for the $if command.
$set_var x 1
$set_var x +1
$until @x = 4