Drop-in replacements for Elixir Regex functions.

In Elixir, each execution of a compiled regex includes a verification step to ensure the PCRE version of the regex is compatible with the version compiled with the local OTP. While this verification introduces a slight overhead, the cumulative effect can be significant, particularly since evaluating regular expressions is crucial for performance in RDF.ex. This is especially notable during deserialization, where regular expression are evaluated in quite tight loops.

All regular expressions are evaluated in RDF.ex through the functions in this module which can be configured with the optimize_regexes key in the compile-time application environment to circumvent Elixir and call through to Erlang re directly:

config :rdf,
  optimize_regexes: true

By default this optimization is disabled and should be enabled only if your application is running in a controlled environment.