String length limitation for regex matching?

Assuming OTP 28 there are flags for re:run/3. Flags that are interesting for you are:

• :report_errors
• :match_limit, quoting docs:

  The default value 10,000,000 is compiled into the Erlang VM.

• :match_limit_recursion

Also, in this particular case using regex is IMHO pointless as using binary pattern matching would be faster and cleaner IMHO.

def extract("START\n" <> input), do: do_extract(input, <<>>)
def extract(other), do: {:error, :no_start}

defp do_extract("\nEND\n", data), do: {:ok, data}
defp do_extract("", _), do: {:error, :no_end}
defp do_extract(<<c>> <> rest, acc), do: do_extract(rest, acc <> <<c>>)

Assuming OTP 28 there are flags for re:run/3. Flags that are interesting for you are:

• :report_errors
• :match_limit, quoting docs:

The default value 10,000,000 is compiled into the Erlang VM.

Thanks!

Also, in this particular case using regex is IMHO pointless as using binary pattern matching would be faster and cleaner IMHO.

Yeah, it was a simplified example just to demonstrate the issue I was having. But thanks for the pattern matching example anyway.