janet support in rouge notes

gistfile1.txt

hex string escapes missing

missing upscope
        @specials ||= Set.new %w(
          break def do fn if quote quasiquote splice set unquote var while
        )

hex handling missing things like 0x2.
        rule %r/[+-]?0x\h[\h_]*(\.\h[\h_]*)?/, Num::Hex
        rule %r/[+-]?0x\.\h[\h_]*/, Num::Hex

similar issue for decimals like 7.
        rule %r/[+-]?\d[\d_]*(\.\d[\d_]*)?([e][+-]?\d+)?/i, Num::Float
        rule %r/[+-]?\.\d[\d_]*([e][+-]?\d+)?/i, Num::Float

contains ~
      punctuation = %r/[_!$%^&*+=~<>.?\/-]/o
      symbol = %r/([[:alpha:]]|#{punctuation})([[:word:]]|#{punctuation}|:)*/o

allows `` as long-string?
        rule %r/@?(`+).*?\1/m, Str::Heredoc

contains #?
        rule %r/[\#~,';\|]/, Operator

lib/rouge/demos/janet - very sparse...fill in more?