Parse error with double dashes/hyphens in hostname

[brantb]

Steps to reproduce

Run the following command:

$ pgloader "mysql://user@example.com/foo" "postgresql://user@example--hostname.example.com"

Expected result

pgloader recognizes the second argument as a PostgreSQL database URI and proceeds.

Actual result:

2025-09-25T12:05:57.003783-04:00 LOG pgloader version "3.6.9"
2025-09-25T12:05:57.005166-04:00 ERROR Could not parse target string "postgresql://user@example--hostname.example.com": At

  postgresql://user@example--hostname.example.com
                            ^ (Line 1, Column 26, Position 26)

In context NETWORK-LABEL-LETTERS-DIGIT:

While parsing NETWORK-LABEL-LETTERS-DIGIT. Problem:

  The production

    #\-

  does not satisfy the predicate ALPHA-CHAR-P.

Expected:

     any character satisfying DIGIT-CHAR-P
  or any character satisfying ALPHA-CHAR-P
2025-09-25T12:05:57.005192-04:00 FATAL Failed to parse "postgresql://user@example--hostname.example.com" as a PostgreSQL database URI.

Environment

pgloader v3.6.9 (Homebrew)
macOS Tahoe 26.0