9 lines
214 B
Text
9 lines
214 B
Text
( :?a
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& (b=)
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& abra:?c
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& (d=cadabra)
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& !a: { a is empty string }
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& !b: { b is also empty string }
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& !c:~ { c is not an empty string }
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& !d:~ { neither is d an empty string }
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)
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