Hi all, I need to port this from JavaScript to Elixir:

/[\0-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/

When I try:

Regex.compile!("[\0-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]", "u")

I get:

** (ArgumentError) invalid or reserved Unicode codepoint 55296
    (elixir) src/elixir_interpolation.erl:200: :elixir_interpolation.append_codepoint/5
    (elixir) src/elixir_interpolation.erl:81: :elixir_interpolation."-unescape_tokens/2-lc$^0/1-0-"/2
    (elixir) src/elixir_interpolation.erl:81: :elixir_interpolation.unescape_tokens/2
    (elixir) src/elixir_tokenizer.erl:673: :elixir_tokenizer.handle_strings/6
    (elixir) lib/code.ex:669: Code.string_to_quoted/2

and when I try

~r/[\0-\x{D7FF}\x{E000}-\x{FFFF}]|[\x{D800}-\x{DBFF}][\x{DC00}-\x{DFFF}]|[\x{D800}-\x{DBFF}](?![\x{DC00}-\x{DFFF}])|(?:[^\x{D800}-\x{DBFF}]|^)[\x{DC00}-\x{DFFF}]/u

I get

** (Regex.CompileError) disallowed Unicode code point (>= 0xd800 && <= 0xdfff) at position 39
    (elixir) lib/regex.ex:172: Regex.compile!/2
    (elixir) expanding macro: Kernel.sigil_r/2
    iex:43: (file)

Looks like the problem is with \uD800. Does anybody has an idea how to solve it?