RFC 9839

A library to check whether a string, charlist or codepoint fits within the Unicode subsets specified by RFC 9839. These subsets are designed to exclude “problematic” codepoints, for varying definitions of “problematic”.

Installation

Add rfc9839 to your dependencies in mix.exs:

def deps do
  [
    {:rfc9839, "~> 0.1.0"}
  ]
end

Usage

The library consists of a single module, RFC9839, that exposes a check function for each of the three subsets specified in RFC 9839:

• RFC9839.is_unicode_scalar?/1
• RFC9839.is_xml_character?/1
• RFC9839.is_unicode_assignable?/1

Each function accepts either an integer codepoint, a charlist, or a string.