case

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Conditional execution

test

cond

result case value clist


outputs as result the run butfirst entry of the list of the clist list which has the entry value as its first element. If the first entry of a clist sublist is else then if no previous condition is fullfilled the corresponding rest of that sublist gets executed.

Example:

case 2 [[1 "a] [2 "b] [3 "c]] ;b ;-) case 2 [[1 "a][else "b]] ;b ;-) case 2 [[1 pr "a] [[(Cos 0)+Cos 0] pr "b] [else pr "els]] ;b

References:

cascade(4), setCaseIgnored(4), WindowInheritAttributes(3), _Macro(3), equalP(3), throw(3), CaseIgnoredP(2), DynamicLibraryCall(2), Pen and Background Control(2), Release Notes for Version 4.67(2), Tokenization(2), butFirsts(2), catch(2), readWord(2), setPos(2), Array, Buglist for version 4.65, Control Structures, Entering and leaving Logo, FloatArray, Int, Int16Array, IntArray, Label, ListControls, Numeric Operations, Release Notes for Version 4.65, WindowClose, WindowSetFontName, WindowSetFontSize, WindowSetFontStyle, WindowSetFontWeight, WindowToggleWindowStyle, _maybeOutput, and, beforeP, crossmap, firsts, foreach, make, map, or, removeItem, to

test

cond