CSV::Parser#parse_column_end

# File tmp/rubies/ruby-3.0.5/lib/csv/parser.rb, line 1042
def parse_column_end
  return true if @scanner.scan(@column_end)
  return false unless @column_ends

  @scanner.keep_start
  if @column_ends.all? {|column_end| @scanner.scan(column_end)}
    @scanner.keep_drop
    true
  else
    @scanner.keep_back
    false
  end
end