On Wed, Apr 08, 2009 at 10:22:15AM +0200, Giacomo A. Catenazzi wrote: > Roger Leigh wrote: >> On Tue, Apr 07, 2009 at 09:24:38PM +0200, Adeodato Simó wrote: >>> + Thorsten Glaser (Tue, 07 Apr 2009 18:54:59 +0000): >>> >>>> Except the ton which sets LC_ALL=C to get sane (parsable, >>>> dependable, historically compatible) output. >>>> These would then unset all other LC_* and LANG and LANGUAGE, >>>> and only set LC_CTYPE to C.UTF-8 to get "old" behaviour but >>>> with UTF-8 (and mbrtowc and iswctype and and and) available. >>> Isn’t setting LC_ALL=C.UTF-8 going to be about the same and less work? >>> I’m genuinely interested if that would behave any different to what you >>> said (unsetting all, setting LC_CTYPE). >> >> % sudo localedef -c -i POSIX -f UTF-8 C.UTF-8 >> >> % LANG=C.UTF8 locale charmap >> UTF-8 >> >> % LANG=C locale charmap >> ANSI_X3.4-1968 >> >> This appears to work correctly at first glance. >> >> However, I would ideally like the C/POSIX locales to be UTF-8 >> by default as on other systems (with a C.ASCII variant if required). > > POSIX doesn't mandate "C" to be ASCII7. > > BTW ASCII7 is a subset of UTF-8, so what would be different with > normal "C"? I don't expect any differences on any program (which > are POSIX compatible). The output characters will still be only on > the c<128 range.
Exactly. For a conforming program only using c<128, there will be zero differences running in a UTF-8 C locale and running and an ASCII C locale, just like there are no differences today when running in any UTF-8 locale (except maybe collation, but for the UTF-8 C locale we would need to keep it fully backward compatible with the existing behaviour). However, what is different is that programs may /optionally/ choose to use the UTF-8 superset of ASCII7 and have output and string formatting and wide/narrow character conversion work correctly. This is what is currently lacking. Regards, Roger -- .''`. Roger Leigh : :' : Debian GNU/Linux http://people.debian.org/~rleigh/ `. `' Printing on GNU/Linux? http://gutenprint.sourceforge.net/ `- GPG Public Key: 0x25BFB848 Please GPG sign your mail. -- To UNSUBSCRIBE, email to debian-policy-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
