index 73 missing/os2.c !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`\n",*s)) {
index 80 missing/os2.c !isalpha(*s) && index("^()<>|&\n",*s)) {
index 1191 win32/win32.c if (index("/\\:", *CharPrev(scanname, scanname + strlen(scanname))) == NULL)