[EMAIL PROTECTED] (Eric Blake) writes: > http://lists.gnu.org/archive/html/bug-coreutils/2005-05/msg00136.html
I just looked at that, and don't really follow all the DOS stuff, but have these comments anyway: > cat - POSIX requires binary input and output, and this already has -B option > to fine-tune mode I've removed -B. It didn't really work on DOS, as far as I could see. And it wasn't portable (it didn't work on GNU/Linux). > head - POSIX requires text input, but compare to tail -c on binary input Currently "head" runs in binary mode (which means, in DOS, that it uses binary mode except if stdin/stdout is a tty). > nohup - POSIX requires that stdout from utility may to go to nohup.out, so > nohup.out should probably be opened in same mode as nohup's stdout (if it > exists) nohup.out is currently opened in text mode. Let's just leave that alone, unless someone really needs it. (I doubt whether they will.) > I've thought > more about fcntl(fd, F_SETFL, flags), where the nice gnulib behavior > would be: > neither O_BINARY nor O_TEXT: leave mode unchanged > O_BINARY: if not tty, force binary mode > O_TEXT: if not tty, force text mode > O_BINARY | O_TEXT: if not tty, swap mode My kneejerk reaction is that sounds pretty confusing. But perhaps I don't see the application area. >> and have a wrapper on MS-DOS that defines freopen to not do anything >> if the first argument is NULL, the second ends in "b", and the third a >> standard tty? > > Since POSIX states that "w+b" and "wb+" are synonyms, for example, OK, use 'contains "b"' instead of 'ends in "b"'. > I'd like to see a deprecation period rather than outright removal, > where -B is undocumented, and using it evokes a warning but > is otherwise a no-op (rather than a fatal unrecognized option). You could talk me into that, yes. > Are there non-standard hosts out there that don't treat "ab" as > a synonym to "a" per POSIX Yes. At least, such hosts used to exist. Maybe we needn't worry about them now. I suppose I can rip out the (O_BINARY ? "rb" : r") stuff. (Though this does save a byte on POSIX hosts. :-) _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils