}

// Use a Scanner with a custom split function to parse a comma-separated
// list with an empty final value.
func ExampleScanner_emptyFinalToken() {
	// Comma-separated list; last entry is empty.
	const input = "1,2,3,4,"
	scanner := bufio.NewScanner(strings.NewReader(input))
	// Define a split function that separates on commas.
	onComma := func(data []byte, atEOF bool) (advance int, token []byte, err error) {

	// verbose generates verbose output.
	verbose bool
	// selectResources constrains the list of resources to compare to only the ones in this list, ignoring all others.
	// The format of each list item is :: and the items are comma separated. The * character represents wildcard selection.
	// e.g.
	// Deployment:istio-system:* - compare all deployments in istio-system namespace
	// Service:*:istio-pilot - compare Services called "istio-pilot" in all namespaces.

	// operatorNamespace is the namespace the operator controller is installed into.
	operatorNamespace string
	// watchedNamespaces is the namespaces the operator controller watches, could be namespace list separated by comma.
	watchedNamespaces string
	// istioNamespace is deprecated, use watchedNamespaces instead.
	istioNamespace string
	// manifestsPath is a path to a charts and profiles directory in the local filesystem with a release tgz.

      --log_caller: Comma-separated list of scopes for which to include caller information, scopes can be any of \[.*\]
      --log_output_level: Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of \[.*\] and level can be one of \[.*\]

	return other
}

// WriteCSV - encodes to CSV data.
func (r *Record) WriteCSV(writer io.Writer, opts sql.WriteCSVOpts) error {
	w := csv.NewWriter(writer)
	w.Comma = opts.FieldDelimiter
	w.AlwaysQuote = opts.AlwaysQuote
	w.Quote = opts.Quote
	w.QuoteEscape = opts.QuoteEscape
	if err := w.Write(r.csvRecord); err != nil {
		return err
	}
	w.Flush()
	return w.Error()

var (
	defaultHelpPostfix = func(key string) string {
		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	Help = config.HelpKVS{
		config.HelpKV{
			Key:         Endpoints,
			Description: `comma separated list of etcd endpoints` + defaultHelpPostfix(Endpoints),
			Type:        "csv",
			Sensitive:   true,
		},
		config.HelpKV{
			Key:         PathPrefix,

		clause.Expression = s.Expression
	} else {
		clause.Expression = s
	}
}

// CommaExpression represents a group of expressions separated by commas.
type CommaExpression struct {
	Exprs []Expression
}

func (comma CommaExpression) Build(builder Builder) {
	for idx, expr := range comma.Exprs {
		if idx > 0 {
			_, _ = builder.WriteString(", ")
		}
		expr.Build(builder)
	}

// server lists all metrics that could be returned for the requested path.
//
// The (repeatable) `buckets` query parameter is a list of bucket names (or it
// could be a comma separated value) to return metrics with a bucket label.
// Bucket metrics will be returned only for the provided buckets. If no buckets
// parameter is provided, no bucket metrics are returned.

			Key:         ClaimName,
			Description: `JWT canned policy claim name` + defaultHelpPostfix(ClaimName),
			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{
			Key:         Scopes,
			Description: `Comma separated list of OpenID scopes for server, defaults to advertised scopes from discovery document e.g. "email,admin"` + defaultHelpPostfix(Scopes),
			Optional:    true,
			Type:        "csv",
		},
		config.HelpKV{

		readCloser: readCloser,
		close:      make(chan struct{}),
	}

	// Assume args are validated by ReaderArgs.UnmarshalXML()
	newCsvReader := func(r io.Reader) *csv.Reader {
		ret := csv.NewReader(r)
		ret.Comma = []rune(args.FieldDelimiter)[0]
		ret.Comment = []rune(args.CommentCharacter)[0]
		ret.Quote = []rune{}
		if len([]rune(args.QuoteCharacter)) > 0 {
			// Add the first rune of args.QuoteCharacter