f.Add([]byte(`${FOO}`))
	f.Add([]byte(`\${FOO}`))
	f.Add([]byte(`$(/bin/false)`))
	f.Add([]byte(`\$(/bin/false)`))
	f.Add([]byte(`$((0))`))
	f.Add([]byte(`\$((0))`))
	f.Add([]byte(`unescaped space`))
	f.Add([]byte(`escaped\ space`))
	f.Add([]byte(`"unterminated quote`))
	f.Add([]byte(`'unterminated quote`))
	f.Add([]byte(`unterminated escape\`))
	f.Add([]byte(`"quote with unterminated escape\`))

# there are some spaces at the end
apiVersion: v1
kind: ConfigMap
metadata:
  name: myconfigmap
  namespace: default
data:

	output io.Writer
	state  int
	space  []byte
}

// trimmer is implemented as a state machine.
// It can be in one of the following states:
const (
	inSpace  = iota // inside space
	inEscape        // inside text bracketed by tabwriter.Escapes
	inText          // inside text
)

func (p *trimmer) resetSpace() {
	p.state = inSpace
	p.space = p.space[0:0]
}

	dataUsageObjName       = ".usage.json"
	dataUsageObjNamePath   = bucketMetaPrefix + SlashSeparator + dataUsageObjName
	dataUsageBloomName     = ".bloomcycle.bin"
	dataUsageBloomNamePath = bucketMetaPrefix + SlashSeparator + dataUsageBloomName

	backgroundHealInfoPath = bucketMetaPrefix + SlashSeparator + ".background-heal.json"

	dataUsageCacheName = ".usage-cache.bin"
)

		"not " + p.name,
	}
}

var trimFuncTests = []struct {
	f        predicate
	in       string
	trimOut  string
	leftOut  string
	rightOut string
}{
	{isSpace, space + " hello " + space,
		"hello",
		"hello " + space,
		space + " hello"},
	{isDigit, "\u0e50\u0e5212hello34\u0e50\u0e51",
		"hello",
		"hello34\u0e50\u0e51",
		"\u0e50\u0e5212hello"},

// trimSpace returns x without any leading or trailing ASCII whitespace.
func trimSpace(x string) string {
	for len(x) > 0 && isSpace(x[0]) {
		x = x[1:]
	}
	for len(x) > 0 && isSpace(x[len(x)-1]) {
		x = x[:len(x)-1]
	}
	return x
}

// isSpace reports whether b is an ASCII space character.
func isSpace(b byte) bool {
	return b == ' ' || b == '\t' || b == '\n' || b == '\r'
}

// dataUsageCacheV2 contains a cache of data usage entries version 2.
type dataUsageCacheV2 struct {
	Info  dataUsageCacheInfo
	Cache map[string]dataUsageEntryV2
}

// dataUsageCacheV3 contains a cache of data usage entries version 3.
type dataUsageCacheV3 struct {
	Info  dataUsageCacheInfo
	Cache map[string]dataUsageEntryV3
}

// dataUsageCacheV4 contains a cache of data usage entries version 4.

			}
		}
		i++
	}
	return append(a, s)
}

// rewrite rewrites a subname to having only printable characters and no white
// space.
// From go/src/testing/match.go
func rewrite(s string) string {
	b := []byte{}
	for _, r := range s {
		switch {
		case isSpace(r):
			b = append(b, '_')
		case !strconv.IsPrint(r):
			s := strconv.QuoteRune(r)
			b = append(b, s[1:len(s)-1]...)
		default:

	names []string
}

// Not even worth sorting
var aSpace []opSet

// RegisterOpcode binds a list of instruction names
// to a given instruction number range.
func RegisterOpcode(lo As, Anames []string) {
	if len(Anames) > AllowedOpCodes {
		panic(fmt.Sprintf("too many instructions, have %d max %d", len(Anames), AllowedOpCodes))
	}
	aSpace = append(aSpace, opSet{lo, Anames})
}

func (a As) String() string {

			// 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:])
		if r == utf8.RuneError || unicode.IsSpace(r) || !unicode.IsPrint(r) {
			return true
		}
		i += size
	}
	return false