class Metanorma::Utils::Log

def index_severities(entries)
  s = entries.each_with_object({}) do |e, m|
    m[e[:severity]] ||= 0
    m[e[:severity]] += 1
  end.compact
  s.keys.sort.map do |k|
    "Severity #{k}: <b>#{s[k]}</b> errors"
  end.join("; ")
end