Repeat : Until

Repeat
  ...
Until <expression> [or Forever] 

This function will loop until the <expression> becomes true. Any number can be repeated. If an endless loop is needed then use the Forever keyword instead of Until. With the Break command its possible to exit the Repeat : Until loop at any moment, with the Continue command the end of the current iteration can be skiped.

Example:

  a=0
  Repeat 
    a=a+1
  Until a>100 

This will loop until "a" takes a value > to 100, (it will loop 101 times).