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defmodule Snippet do |
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import Code, only: [eval_string: 1] |
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import Enum, only: [map: 2, join: 2] |
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import List, only: [wrap: 1] |
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import Regex, only: [replace: 3] |
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@snippet ~r/(?<!`)`([^`\n]+)`(?!`)/ |
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:-( |
def snip(md, imports \\ []) do |
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imports = build(imports) |
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replace(@snippet, md, fn _, code -> eval(imports, code) end) |
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end |
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42 |
defp eval(imports, code) do |
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{result, _} = eval_string("#{imports}; #{code}") |
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to_string(result) |
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rescue |
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_ -> code |
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end |
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defp build(imports) do |
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wrap(imports) |> map(&"import #{&1}") |> join("; ") |
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end |
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end |