class PgSearch::Normalizer

def add_normalization(original_sql)
  normalized_sql = original_sql
  if @config.ignore.include?(:accents)
    if @config.postgresql_version < 90000
      raise PgSearch::NotSupportedForPostgresqlVersion.new(<<-MESSAGE.gsub /^\s*/, '')
      Sorry, {:ignoring => :accents} only works in PostgreSQL 9.0 and above.
      #{@config.inspect}
      MESSAGE
    else
      normalized_sql = "unaccent(#{normalized_sql})"
    end
  end
  normalized_sql
end

def initialize(config)
  @config = config
end