Propeller Manual

REPEAT – Spin Language Reference
REPEAT
Command: Execute code block repetitively.
((PUB ┆ PRI))
REPEAT 〈Count〉
 Statement(s)
((PUB ┆ PRI))
REPEAT Variable FROM Start TO Finish 〈STEP Delta〉
 Statement(s)
((PUB ┆ PRI))
REPEAT (( UNTIL┆ WHILE )) Condition(s)
 Statement(s)
((PUB ┆ PRI))
REPEAT
 Statement(s)
((UNTIL┆ WHILE)) Condition(s)
• Count is an optional expression indicating the finite number of times to execute
Statement(s). If Count is omitted, syntax 1 creates an infinite loop made up of
Statement(s).
•
Statement(s) is an optional block of one or more lines of code to execute repeatedly.
Omitting Statement(s) is rare, but may be useful in syntax 3 and 4 if Condition(s)
achieves the needed effects.
•
Variable is a variable, usually user-defined, that will be iterated from Start to Finish,
optionally by Delta units per iteration. Variable can be used in Statement(s) to
determine or utilize the iteration count.
•
Start is an expression that determines the starting value of Variable in syntax 2. If
Start is less than Finish, Variable will be incremented each iteration; it will be
decremented otherwise.
•
Finish is an expression that determines the ending value of Variable in syntax 2. If
Finish is greater than Start, Variable will be incremented each iteration; it will be
decremented otherwise.
•
Delta is an optional expression that determines the units in which to
increment/decrement Variable each iteration (syntax 2). If omitted, Variable is
incremented/decremented by 1 each iteration.
Page 188 · Propeller Manual v1.1