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REBOL [ Title: "Leapyear" Date: 3-Jul-2002 Name: 'Leapyear Version: 1.0.0 File: %leapyear.r Author: "Andrew Martin" Purpose: "Returns true for a leap year." eMail: %Al--Bri--xtra--co--nz Web: library: [ level: 'beginner platform: none type: 'tool domain: 'math tested-under: none support: none license: none see-also: none ] ] Leapyear?: function [ "Returns true for a leap year." Date [date!] "The date to check." ] [Year] [ Year: Date/year any [ all [ 0 = remainder Year 4 0 <> remainder Year 100 ] 0 = remainder Year 400 ] ]
halt ;; to terminate script if DO'ne from webpage
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