Eric Blake wrote: > The next version of POSIX will be enforcing that '/' and '.' are > unambiguous across all POSIX encodings supported by all locales on a > system
We are already make use of it in lib/mbschr.c and lib/mbsrchr.c. > There are, however, some non-POSIX encodings where '/' can appear as the > second byte in a shift-state sequence encoder (ISO-2022-JP-2), although > they are rare in practice these days. They are nonexistent for many years already. In 1999, Stephen Turnbull had a web page describing some of the weird effects that he got with non-ASCII file names in a ISO-2022-JP-2 locale. I think this was enough to convince everyone that locales with stateful encodings are not practical. > Also, if you worry about systems where backslash is a directory > separator, there are encodings such as Shift_JIS where '\\' can appear > as a second byte within a multi-byte character (hence, '\\' is > ambiguous, even though '/' is not). Yes, such locales exist, even on glibc systems where such locales are not ISO C 99 compliant. Bruno
