bool isAlphaNumeric(unsigned char c) { bool status = false; if(getAlphanumeric(c) >= 0) status = true; return(status); }
static bool isAlphanumeric(const char *text, uint16_t length) { while (length != 0) { if (getAlphanumeric(text[--length]) == -1) { return false; } } return true; }