RosettaCodeData/Task/Empty-string/PL-I/empty-string.pli

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s = '';                   /* assign an empty string to a variable. */
if length(s) = 0 then ... /* To test whether a string is empty */
if length(s) > 0 then ... /* to test for a non-empty string */
	`s = ''; /* assign an empty string to a variable. */`
	`if length(s) = 0 then ... /* To test whether a string is empty */`
	`if length(s) > 0 then ... /* to test for a non-empty string */`