Glenn Fowler wrote: > On Tue, 15 Jan 2008 16:57:26 -0800 (PST) Don Cragun wrote: > > Glenn & Roland, > > The C99 Standard (Subclause 7.11.2.1 "The localeconv function") > > says that the character string pointed to by char *decimal_point and > > char *thousands_sep in struct lconv contain "The decimal-point > > character used to format nonmonetary quantities." and "The character > > used to separate groups of digits before the decimal-point character in > > formatted nonmonetary quantities.", respectively. Note that in the C > > Standard, "character" is a single-byte character. Corresponding to > > this, the POSIX standard in the description of Locale Definition file > > (XBD Subclause 7.3.4 "LC_NUMERIC", P146, L4948-4949 & L4952-4954) we > > have: "In contexts where standards limit the decimal_point to a single > > byte, the result of specifying a multi-byte operand shall be > > unspecified." and "In contexts where standards limit the thousands_sep > > to a single byte, the result of specifying a multi-byte operand shall > > be unspecified." > > So, in general, struct lconv char* elements are strings which > > may contain zero or more characters before the terminating null, but > > the decimal_point and thousands_sep fields aren't quite as free. > > thanks Don > so absent a standard multibyte interface ast/ksh will stick with > the single byte characters provided by localeconv(): > struct lconv *decimal_point > struct lconv *thousands_sep
But what happens when these data point to multibyte characters (see http://mail.opensolaris.org/pipermail/ksh93-integration-discuss/2008-January/005846.html for an idea to split the arabic locales into one version which uses ASCII characters and a 2nd version which uses the correct arabic (multibyte) characters) ? AFAIK (Don may correct me) it's the author(s) of the locale data which are responsible to define this correctly and the "consumer side" (e.g. libast/ksh93) should just use the strings (and not just the first byte) from struct lconv char* elements... ---- Bye, Roland -- __ . . __ (o.\ \/ /.o) roland.mainz at nrubsig.org \__\/\/__/ MPEG specialist, C&&JAVA&&Sun&&Unix programmer /O /==\ O\ TEL +49 641 7950090 (;O/ \/ \O;)
