# $EPIC: until.txt,v 1.2 2006/08/20 17:37:08 sthalik Exp $
======Synopsis:======
__until__ (<condition>) [{] <action> [}]

======Description:======
The __UNTIL__ loop is the inverse of the [[WHILE]] loop; it performs the
given <action> so long as <condition> is false.

The <condition> is evaluated in "expression mode".
The <action> is evaluated in "text mode".
The curly-braces around <action> are recommended, but optional.

======Examples:======
To display a warning message 3 times:
      @ xx = 3
      until ( xx == 0 ) {
         echo WARNING!  This ship will self destruct in $xx seconds!
         @ xx--
      }

A infinite loop that behaves like the Unix 'yes' command:
      until ( 0 ) echo yes

======History:======
The __UNTIL__ command first appeared in EPIC3.