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exonerate

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JSON Schema macro generator

Retired package: Release invalid - package handles prefixItems incorrectly
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exonerate lib exonerate formats hex.ex
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lib/exonerate/formats/hex.ex 

defmodule Exonerate.Formats.Hex do

  @moduledoc false



  # provides special code for a hexadecimal character guard



  # the format is governed by appendix A of RFC 3339:

  # https://www.rfc-editor.org/rfc/rfc3339.txt



  alias Exonerate.Cache



  defmacro guard do

    if Cache.register_context(__CALLER__.module, :is_hex) do

      quote do

        defguard is_hex(char) when char in ?0..?9 or char in ?a..?f or char in ?A..?F

      end

    end

  end

end