Function PrettyPrintValue

pkg/util/encoding/encoding.go:1428–1449

PrettyPrintValue returns the string representation of all contiguous decodable values in the provided byte slice, separated by a provided separator. The directions each value is encoded may be provided. If valDirs is nil, all values are decoded and printed with the default direction (ascending).

(valDirs []Direction, b []byte, sep string)

// The directions each value is encoded may be provided. If valDirs is nil,
// all values are decoded and printed with the default direction (ascending).
func PrettyPrintValue(valDirs []Direction, b []byte, sep string) string {
	s1, allDecoded := prettyPrintValueImpl(valDirs, b, sep)
	if allDecoded {
		return s1
	}
	if undoPrefixEnd, ok := UndoPrefixEnd(b); ok {
		// When we UndoPrefixEnd, we may have lost a tail of 0xFFs. Try to add
		// enough of them to get something decoded. This is best-effort, we have to stop
		// somewhere.
		cap := 20
		if len(valDirs) > len(b) {
			cap = len(valDirs) - len(b)
		}
		for i := 0; i < cap; i++ {
			if s2, allDecoded := prettyPrintValueImpl(valDirs, undoPrefixEnd, sep); allDecoded {
				return s2 + sep + "PrefixEnd"
			}
			undoPrefixEnd = append(undoPrefixEnd, 0xFF)
		}
	}
	return s1
}

func prettyPrintValueImpl(valDirs []Direction, b []byte, sep string) (string, bool) {
	allDecoded := true