CSV::Parser#parse_column_value

# File tmp/rubies/ruby-3.2.0/lib/csv/parser.rb, line 1092
def parse_column_value
  if @liberal_parsing
    quoted_value = parse_quoted_column_value
    if quoted_value
      @scanner.scan_all(@strip_value) if @strip_value
      unquoted_value = parse_unquoted_column_value
      if unquoted_value
        if @double_quote_outside_quote
          unquoted_value = unquoted_value.gsub(@quote_character * 2,
                                               @quote_character)
          if quoted_value.empty? # %Q{""...} case
            return @quote_character + unquoted_value
          end
        end
        @quote_character + quoted_value + @quote_character + unquoted_value
      else
        quoted_value
      end
    else
      parse_unquoted_column_value
    end
  elsif @may_quoted
    parse_quoted_column_value ||
      parse_unquoted_column_value
  else
    parse_unquoted_column_value ||
      parse_quoted_column_value
  end
end