1 #![cfg(all(
2 feature = "with-system-locale",
3 unix,
4 any(
5 target_os = "dragonfly",
6 target_os = "freebsd",
7 target_os = "ios",
8 target_os = "macos",
9 target_os = "openbsd",
10 target_os = "netbsd"
11 )
12 ))]
13
14 use libc::{c_char, c_int, c_void};
15
16 use crate::error::Error;
17 use crate::system_locale::unix::{Encoding, Lconv, StaticCString, UTF_8};
18
19 extern "C" {
localeconv_l(locale: *const c_void) -> *const libc::lconv20 fn localeconv_l(locale: *const c_void) -> *const libc::lconv;
nl_langinfo_l(item: libc::nl_item, locale: *const c_void) -> *const c_char21 fn nl_langinfo_l(item: libc::nl_item, locale: *const c_void) -> *const c_char;
querylocale(mask: c_int, locale: *const c_void) -> *const c_char22 fn querylocale(mask: c_int, locale: *const c_void) -> *const c_char;
23 }
24
get_encoding(locale: *const c_void) -> Result<Encoding, Error>25 pub(crate) fn get_encoding(locale: *const c_void) -> Result<Encoding, Error> {
26 let encoding_ptr = unsafe { nl_langinfo_l(libc::CODESET, locale) };
27 let encoding_static_c_string = StaticCString::new(encoding_ptr, *UTF_8, "nl_langinfo_l")?;
28 let encoding_string = encoding_static_c_string.to_string()?;
29 let encoding = Encoding::from_bytes(encoding_string.as_bytes())?;
30 Ok(encoding)
31 }
32
get_lconv(locale: *const c_void, encoding: Encoding) -> Result<Lconv, Error>33 pub(crate) fn get_lconv(locale: *const c_void, encoding: Encoding) -> Result<Lconv, Error> {
34 let lconv_ptr = unsafe { localeconv_l(locale) };
35 if lconv_ptr.is_null() {
36 return Err(Error::system_invalid_return(
37 "localeconv_l",
38 "localeconv_l unexpectedly returned a null pointer.",
39 ));
40 }
41 let lconv: &libc::lconv = unsafe { lconv_ptr.as_ref() }.unwrap();
42 let lconv = Lconv::new(lconv, encoding)?;
43 Ok(lconv)
44 }
45
get_name(locale: *const c_void, encoding: Encoding) -> Result<String, Error>46 pub(crate) fn get_name(locale: *const c_void, encoding: Encoding) -> Result<String, Error> {
47 let mask = libc::LC_CTYPE_MASK | libc::LC_MONETARY_MASK | libc::LC_NUMERIC_MASK;
48 let name_ptr = unsafe { querylocale(mask, locale) };
49 let name_static_c_string = StaticCString::new(name_ptr, encoding, "querylocale")?;
50 let name = name_static_c_string.to_string()?;
51 Ok(name)
52 }
53