core/lib/compass/core/sass_extensions/functions/enumerate.rb
module Compass::Core::SassExtensions::Functions::Enumerate
def enumerate(prefix, from, through, separator = nil)
separator ||= identifier("-")
selectors = (from.value..through.value).map{|i| "#{prefix.value}#{separator.value}#{i}"}.join(", ")
identifier(selectors)
end
end