Emoji: apply recommended tail call changes
Behavior matches previous code. Co-authored-by: Tusooa Zhu <tusooa@kazv.moe>
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@ -13,18 +13,22 @@ defmodule Pleroma.Emoji.Combinations do
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# the entire emoji list in emoji-test.txt. This is safe, and, sadly, most
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# likely sane too.
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defp qualification_combinations([]), do: [[]]
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defp qualification_combinations(["\uFE0F" | tail]) do
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tail
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|> qualification_combinations()
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|> Enum.flat_map(fn x -> [x, ["\uFE0F" | x]] end)
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defp qualification_combinations(codepoints) do
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qualification_combinations([[]], codepoints)
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end
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defp qualification_combinations([codepoint | tail]) do
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tail
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|> qualification_combinations()
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|> Enum.map(fn x -> [codepoint | x] end)
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defp qualification_combinations(acc, []), do: acc
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defp qualification_combinations(acc, ["\uFE0F" | tail]) do
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acc
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|> Enum.flat_map(fn x -> [x, x ++ ["\uFE0F"]] end)
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|> qualification_combinations(tail)
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end
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defp qualification_combinations(acc, [codepoint | tail]) do
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acc
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|> Enum.map(&Kernel.++(&1, [codepoint]))
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|> qualification_combinations(tail)
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end
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def variate_emoji_qualification(emoji) when is_binary(emoji) do
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