module ActiveSupport::Multibyte::Unicode

Primarily used by the grapheme cluster support.

:v, :lv, :lvt and :t.
character class and +false+ otherwise. Valid character classes are: :cr, :lf, :l,
Detect whether the codepoint is in a certain character class. Returns +true+ when it's in the specified

def in_char_class?(codepoint, classes)
  classes.detect { |c| database.boundary[c] === codepoint } ? true : false
end