9 lines
273 B
Factor
9 lines
273 B
Factor
USING: calendar calendar.format io kernel lists lists.lazy
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sequences sets ;
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: palindrome-dates ( -- list )
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2020 2 2 <date> [ 1 days time+ ] lfrom-by
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[ timestamp>ymd ] lmap-lazy
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[ "-" without dup reverse = ] lfilter ;
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15 palindrome-dates ltake [ print ] leach
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