func strings.ContainsRune

9 uses

	strings (current package)
		strings.go#L72: func ContainsRune(s string, r rune) bool {
		strings.go#L1032: 		if !ContainsRune(cutset, r) {
		strings.go#L1080: 		if !ContainsRune(cutset, r) {

	crypto/x509
		constraints.go#L410: 		if !strings.ContainsRune(c, '@') {

	encoding/json
		encode.go#L953: 		case strings.ContainsRune("!#$%&()*+-./:;<=>?@[]^_{|}~ ", c):

	github.com/andybalholm/brotli
		http.go#L180: 		isSeparator := strings.ContainsRune(" \t\"(),/:;<=>?@[]\\{}", rune(c))
		http.go#L181: 		if strings.ContainsRune(" \t\r\n", rune(c)) {

	math/big
		ratconv.go#L18: 	return strings.ContainsRune("+-/0123456789.eE", ch)
		ratconv.go#L31: 	if !strings.ContainsRune("efgEFGv", ch) {