return s[1:2], 3
		}
		// Scan to closing brace
		for i := 1; i < len(s); i++ {
			if s[i] == '}' {
				if i == 1 {
					return "", 2 // Bad syntax; eat "${}"
				}
				return s[1:i], i + 1
			}
		}
		return "", 1 // Bad syntax; eat "${"
	case isShellSpecialVar(s[0]):
		return s[0:1], 1
	}
	// Scan alphanumerics.
	var i int
	for i = 0; i < len(s) && isAlphaNum(s[i]); i++ {
	}
	return s[:i], i

func Hello() string {
	return sampler.Hello()
}

// Glass returns a useful phrase for world travelers.
func Glass() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func Go() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}

// Opt returns an optimization truth.

func HelloV2() string {
	return sampler.Hello()
}

// Glass returns a useful phrase for world travelers.
func GlassV2() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func GoV2() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}

// Opt returns an optimization truth.

	testString(t, concurrency, "concurrency", "Concurrency is not parallelism.\n")
	testString(t, string(glass), "glass", "I can eat glass and it doesn't hurt me.\n")
	testString(t, concurrency2, "concurrency2", "Concurrency is not parallelism.\n")
	testString(t, string(glass2), "glass2", "I can eat glass and it doesn't hurt me.\n")

	big, err := os.ReadFile("testdata/ascii.txt")
	if err != nil {
		t.Fatal(err)
	}

func Hello() string {
	return sampler.Hello()
}

// Glass returns a useful phrase for world travelers.
func Glass() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func Go() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}

// Opt returns an optimization truth.

func Hello() string {
	return "Hello, world."
}

// Glass returns a useful phrase for world travelers.
func Glass() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func Go() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}
-- quote_test.go --

func Hello() string {
	return sampler.Hello()
}

// Glass returns a useful phrase for world travelers.
func Glass() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func Go() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}

// Opt returns an optimization truth.

func Hello() string {
	return sampler.Hello()
}

// Glass returns a useful phrase for world travelers.
func Glass() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func Go() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}

// Opt returns an optimization truth.

func Hello() string {
	return sampler.Hello()
}

// Glass returns a useful phrase for world travelers.
func Glass() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func Go() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}

// Opt returns an optimization truth.

func HelloV2() string {
	return sampler.Hello()
}

// Glass returns a useful phrase for world travelers.
func GlassV2() string {
	// See http://www.oocities.org/nodotus/hbglass.html.
	return "I can eat glass and it doesn't hurt me."
}

// Go returns a Go proverb.
func GoV2() string {
	return "Don't communicate by sharing memory, share memory by communicating."
}

// Opt returns an optimization truth.