Function gethexa

depends/lua/src/llex.c:315–319

static int gethexa (LexState *ls) {
  save_and_next(ls);
  esccheck (ls, lisxdigit(ls->current), "hexadecimal digit expected");
  return luaO_hexavalue(ls->current);
}


static int readhexaesc (LexState *ls) {