kRegExpOpen
case kRegExpOpen + 1:
case kRegExpOpen + 2:
case kRegExpOpen + 3:
case kRegExpOpen + 4:
case kRegExpOpen + 5:
case kRegExpOpen + 6:
case kRegExpOpen + 7:
case kRegExpOpen + 8:
case kRegExpOpen + 9:
no = *scan - kRegExpOpen;
case kRegExpOpen + 1:
case kRegExpOpen + 2:
case kRegExpOpen + 3:
case kRegExpOpen + 4:
case kRegExpOpen + 5:
case kRegExpOpen + 6:
case kRegExpOpen + 7:
case kRegExpOpen + 8:
case kRegExpOpen + 9:
sprintf(buf + strlen(buf), "kRegExpOpen%d", *op - kRegExpOpen);
ret = Node((char)(kRegExpOpen + parno));