Function isAlphaNum

cli/context/store/store.go:254–258

(c byte)

}

func isAlphaNum(c byte) bool {
	return (c >= 'a' && c <= 'z') ||
		(c >= 'A' && c <= 'Z') ||
		(c >= '0' && c <= '9')
}

// Export exports an existing namespace into an opaque data stream
// This stream is actually a tarball containing context metadata and TLS materials, but it does