class Sass::Script::Parser

def ident
  return funcall unless @lexer.peek && @lexer.peek.type == :ident
  return if @stop_at && @stop_at.include?(@lexer.peek.value)
  name = @lexer.next
  if color = Color::HTML4_COLORS[name.value]
    return node(Color.new(color))
  end
  node(Script::String.new(name.value, :identifier))
end