Repeat..until

Synopsis

repeat { } until { expression }

Description

The repeat..until control structure executes the code block between the statements, and then evaluates the expression. This will make it so that repeat..until loops will always execute the code within the loop at least once. This command differe's from the while command because the expression is evaluated prior to the code inside the code block, where while evaluates the expression after executing it's code block.

Example

set %str Hello , #spc , World 
repeat 
  set %str %str , ! 
  str len %str 
until #strres >= 30 
display ok %str 
halt

The example above illustrates the difference between a repeat..until loop and a while loop. the exclamation point will always be concatinated to the end of the %str variable, and str len will be executed once before the test for #strRes >= 30 is first evaluated.

See also

Main Page

Documentation