fjord/ls.rb
2024-04-16 20:06:34 +09:00

44 lines
789 B
Ruby

# frozen_string_literal: true
COLUMNS = 3
files = []
def run(files)
served = serve(files)
sliced = slice(served)
filled = fill(sliced)
arranged(filled)
end
def serve(files)
files.concat(Dir.glob('*'))
end
def slice(served)
element = if (served.size % COLUMNS).zero?
served.size / COLUMNS
else
served.size / COLUMNS + 1
end
served.each_slice(element).to_a
end
def fill(sliced)
array_size = sliced.map(&:size).max
sliced.each do |slice|
slice << '' while slice.size < array_size
end
sliced.transpose
end
def arranged(filled)
element2 = filled.flatten.map(&:size).max
filled.each do |arrange|
arrange.each do |arranged|
print arranged.ljust(element2 + 5)
end
puts
end
end
run(files)