Vocabulary/ControlStructures

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Control words are used in Explicit Definition (:) and are punctuation that determine the sequence of execution. Matching control words and the enclosed sentences make up a control structure.

The following control words and structures are available, where words beginning with B or T denote sentence blocks:

assert. T	Trigger error
break.	Terminate loop
continue.	Terminate iteration
for.     T do. B end. for_xyz. T do. B end.	Repeat for
goto_lbl. label_lbl.	Go to label
if. T do. B end. if. T do. B else. B1 end. if.     T  do. B elseif. T1 do. B1 elseif. T2 do. B2 else. B3 end.	Execute if / Execute alternative
return.	Exit with result
select. T  case.  T0 do. B0  fcase. T1 do. B1  case.  T2 do. B2 end.	Execute case
throw.	Execute throw
try. B  catch.  B1  catchd. B2  catcht. B3 end.	Execute try
while. whilst.	Execute while