},
		{
			// The root cause of the behavior above is that, has on an object (or Message in the Language Def),
			// still require the field to be declared in the schema.
			//
			// Quoting from
			// https://github.com/google/cel-spec/blob/master/doc/langdef.md#field-selection
			//
			// To test for the presence of a field, the boolean-valued macro has(e.f) can be used.
			//

func NewWriter(w io.Writer) *Writer {
	return &Writer{
		Comma: ',',
		w:     bufio.NewWriter(w),
	}
}

// Write writes a single CSV record to w along with any necessary quoting.
// A record is a slice of strings with each string being one field.
// Writes are buffered, so [Writer.Flush] must eventually be called to ensure
// that the record is written to the underlying [io.Writer].

// panning inside a web browser. It uses the svgpan library, which is
// embedded into the svgpan.JSSource variable.
func massageSVG(svg string) string {
	// Work around for dot bug which misses quoting some ampersands,
	// resulting on unparsable SVG.
	svg = strings.Replace(svg, "&;", "&;", -1)

	// Dot's SVG output is
	//
	//    <svg width="___" height="___"
	//     viewBox="___" xmlns=...>

                }
                return Collections.singletonList("@" + argsFile.getAbsolutePath());
            }
        };
    }

    /**
     * Writes a set of args on a single line, escaping and quoting as required.
     */
    @Override
    public ArgWriter args(Object... args) {
        for (int i = 0; i < args.length; i++) {
            Object arg = args[i];
            if (i > 0) {

        boolean wasOnBackslash = false;
        StringBuilder escapedJvmOpt = new StringBuilder();
        CharacterIterator it = new StringCharacterIterator(jvmOpts);

        //argument quoting:
        // - " must be encoded as \"
        // - % must be encoded as %%
        // - pathological case: \" must be encoded as \\\", but other than that, \ MUST NOT be quoted

}

func needsQuoting(s string) bool {
	if len(s) == 0 {
		return true
	}
	for i := 0; i < len(s); {
		b := s[i]
		if b < utf8.RuneSelf {
			// Quote anything except a backslash that would need quoting in a
			// JSON string, as well as space and '='
			if b != '\\' && (b == ' ' || b == '=' || !safeSet[b]) {
				return true
			}
			i++
			continue
		}
		r, size := utf8.DecodeRuneInString(s[i:])

		return str("INFO", l-LevelInfo)
	case l < LevelError:
		return str("WARN", l-LevelWarn)
	default:
		return str("ERROR", l-LevelError)
	}
}

// MarshalJSON implements [encoding/json.Marshaler]
// by quoting the output of [Level.String].
func (l Level) MarshalJSON() ([]byte, error) {
	// AppendQuote is sufficient for JSON-encoding all Level strings.
	// They don't contain any runes that would produce invalid JSON
	// when escaped.

	// Discussion:
	//   This is often due to a typo in an HTML element, but some runes
	//   are banned in tag names, attribute names, and unquoted attribute
	//   values because they can tickle parser ambiguities.
	//   Quoting all attributes is the best policy.
	ErrBadHTML

	// ErrBranchEnd: "{{if}} branches end in different contexts"
	// Example:
	//   {{if .C}}<a href="{{end}}{{.X}}
	// Discussion:

	out, err := runner.exec.Command(iptablesSaveCmd, "-t", string(table)).CombinedOutput()
	if err != nil {
		return false, fmt.Errorf("error checking rule: %v", err)
	}

	// Sadly, iptables has inconsistent quoting rules for comments. Just remove all quotes.
	// Also, quoted multi-word comments (which are counted as a single arg)
	// will be unpacked into multiple args,

func escape(s string) string {
	s = strings.Replace(s, "\\", "\\\\", -1)
	s = strings.Replace(s, "'", "\\'", -1)
	// Conservative guess at characters that will force quoting
	if s == "" || strings.ContainsAny(s, "\\ ;#*&$~?!|[]()<>{}`") {
		s = "'" + s + "'"
	}
	return s
}

// asCommandLine renders cmd as something that could be copy-and-pasted into a command line