56 lines
1.4 KiB
Ruby
56 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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items = []
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NUM_COLUMNS = 3 # 列幅の最大数
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def main(items)
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taken_items = take_items(items)
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sliced_items = slice_items(taken_items)
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sorted_items = sort_items(sliced_items)
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display_items(sorted_items)
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end
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def take_items(items)
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items.concat(Dir.glob('*'))
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end
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def slice_items(taken_items)
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order_id = if (taken_items.size % NUM_COLUMNS).zero?
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taken_items.size / NUM_COLUMNS.ceil # NUM_COLUMNSの倍数の時だけ、NUM_COLUMNSで割り込む
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else
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taken_items.size / NUM_COLUMNS.ceil + 1 # 最大NUM_COLUMNS列に収める
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end
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taken_items.each_slice(order_id).to_a
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end
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def sort_items(sliced_items)
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if (0..NUM_COLUMNS).cover?(sliced_items.flatten.size)
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sliced_items.flatten
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else
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max_size = sliced_items.map(&:size).max
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sliced_items.each do |item| # サブ配列の要素数を揃える
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item << nil while item.size < max_size
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end
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end
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sliced_items.transpose
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end
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def display_items(sorted_items)
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max_word_count = sorted_items.flatten.compact.map(&:size).max
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if (0..NUM_COLUMNS).cover?(sorted_items.flatten.size)
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sorted_items.flatten.map do |item|
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print item.to_s.ljust(max_word_count + 5)
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end
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puts
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else
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sorted_items.each do |items|
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items.compact.each do |item|
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print item.ljust(max_word_count + 5)
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end
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puts
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end
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end
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end
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main(items)
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