Sha256: 7f9b2640c128d8cf0218073a06b84ad41031597484987dc8114f62d54fc0f96a
Contents?: true
Size: 689 Bytes
Versions: 19
Compression:
Stored size: 689 Bytes
Contents
#!/usr/bin/env ruby
require 'isna'
UNIVERSE = (0..9).to_a
ROT = 5
DIGIT_REGEX = /^\d$/
def resolve(set, candidate)
needle = set.index(candidate)
if (needle + ROT) > set.size
return (needle - set.size + ROT)
end
if (needle + ROT) < set.size
return needle + ROT
end
if (needle == 5)
return 0
end
end
STDIN.each_char do |char|
next if char.chomp == ''
unless char =~ DIGIT_REGEX
print char
next
end
rotation = resolve(UNIVERSE, char.to_i)
m = (0..9).to_a.map do |n|
if n.to_s == char
char.to_ansi.green.to_s
else
n.to_s
end
end
# puts "#{rotation.to_s.to_ansi.red.to_s} = [" + (m * ', ') + "]"
print rotation
end
Version data entries
19 entries across 19 versions & 1 rubygems