RosettaCodeData/Task/String-comparison/Elena/string-comparison.elena

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#import system.
#import extensions.
#symbol compareStrings = (:val1 :val2)
[
(val1 == val2)? [ console writeLine:"The strings ":val1:" and ":val2:" are equal". ].
(val1 != val2)? [ console writeLine:"The strings ":val1:" and ":val2:" are not equal". ].
(val1 > val2)? [ console writeLine:"The string ":val1:" is lexically after than ":val2. ].
(val1 < val2)? [ console writeLine:"The string ":val1:" is lexically before than ":val2. ].
(val1 >= val2)? [ console writeLine:"The string ":val1:" is not lexically before than ":val2. ].
(val1 <= val2)? [ console writeLine:"The string ":val1:" is not lexically after than ":val2. ].
].
#symbol program =
[
#var s1 := "this".
#var s2 := "that".
compareStrings :s1 :s2.
].