NS_IMETHODIMP
nsPlatformCharset::GetDefaultCharsetForLocale(const nsAString& localeName, nsACString &oResult)
{
//
// if this locale is the user's locale then use the charset
// we already determined at initialization
//
if (mLocale.Equals(localeName) ||
// support the 4.x behavior
(mLocale.LowerCaseEqualsLiteral("en_us") &&
localeName.LowerCaseEqualsLiteral("c"))) {
oResult = mCharset;
return NS_OK;
}
#if HAVE_LANGINFO_CODESET
//
// This locale appears to be a different locale from the user's locale.
// To do this we would need to lock the global resource we are currently
// using or use a library that provides multi locale support.
// ICU is a possible example of a multi locale library.
// http://oss.software.ibm.com/icu/
//
// A more common cause of hitting this warning than the above is that
// Mozilla is launched under an ll_CC.UTF-8 locale. In xpLocale,
// we only store the language and the region (ll-CC) losing 'UTF-8', which
// leads |mLocale| to be different from |localeName|. Although we lose
// 'UTF-8', we init'd |mCharset| with the value obtained via
// |nl_langinfo(CODESET)| so that we're all right here.
//
NS_WARNING("GetDefaultCharsetForLocale: need to add multi locale support");
#ifdef DEBUG_jungshik
printf("localeName=%s mCharset=%s\n", NS_ConvertUTF16toUTF8(localeName).get(),
mCharset.get());
#endif
// until we add multi locale support: use the the charset of the user's locale
oResult = mCharset;
return NS_SUCCESS_USING_FALLBACK_LOCALE;
#else
//
// convert from locale to charset
// using the deprecated locale to charset mapping
//
nsAutoString localeStr(localeName);
nsresult res = ConvertLocaleToCharsetUsingDeprecatedConfig(localeStr, oResult);
if (NS_SUCCEEDED(res))
return res;
NS_ERROR("unable to convert locale to charset using deprecated config");
oResult.AssignLiteral("ISO-8859-1");
return NS_SUCCESS_USING_FALLBACK_LOCALE;
#endif
}
nsresult
nsPlatformCharset::InitGetCharset(nsACString &oString)
{
char* nl_langinfo_codeset = nsnull;
nsCString aCharset;
nsresult res;
#if HAVE_LANGINFO_CODESET
nl_langinfo_codeset = nl_langinfo(CODESET);
NS_ASSERTION(nl_langinfo_codeset, "cannot get nl_langinfo(CODESET)");
//
// see if we can use nl_langinfo(CODESET) directly
//
if (nl_langinfo_codeset) {
aCharset.Assign(nl_langinfo_codeset);
res = VerifyCharset(aCharset);
if (NS_SUCCEEDED(res)) {
oString = aCharset;
return res;
}
}
NS_ERROR("unable to use nl_langinfo(CODESET)");
#endif
//
// try falling back on a deprecated (locale based) name
//
char* locale = setlocale(LC_CTYPE, nsnull);
nsAutoString localeStr;
localeStr.AssignWithConversion(locale);
res = ConvertLocaleToCharsetUsingDeprecatedConfig(localeStr, oString);
if (NS_SUCCEEDED(res)) {
return res; // succeeded
}
oString.Truncate();
return res;
}
nsresult
nsPlatformCharset::InitGetCharset(nsACString &oString)
{
char* nl_langinfo_codeset = nsnull;
nsCString aCharset;
nsresult res;
#if HAVE_LANGINFO_CODESET
nl_langinfo_codeset = nl_langinfo(CODESET);
NS_ASSERTION(nl_langinfo_codeset, "cannot get nl_langinfo(CODESET)");
//
// see if we can use nl_langinfo(CODESET) directly
//
if (nl_langinfo_codeset) {
aCharset.Assign(nl_langinfo_codeset);
res = VerifyCharset(aCharset);
if (NS_SUCCEEDED(res)) {
oString = aCharset;
return res;
}
}
// locked for thread safety
{
nsAutoLock guard(gLock);
if (!gNLInfo) {
nsCAutoString propertyFile;
// note: NS_LITERAL_CSTRING("unixcharset." OSARCH ".properties") does not compile on AIX
propertyFile.AssignLiteral("unixcharset.");
propertyFile.AppendLiteral(NS_STRINGIFY(OSARCH));
propertyFile.AppendLiteral(".properties");
nsGREResProperties *info = new nsGREResProperties(propertyFile);
NS_ASSERTION(info, "cannot create nsGREResProperties");
if (info) {
PRBool didLoad = info->DidLoad();
if (!didLoad) {
delete info;
info = nsnull;
}
}
gNLInfo = info;
}
}
//
// See if we are remapping nl_langinfo(CODESET)
//
if (gNLInfo && nl_langinfo_codeset) {
nsAutoString localeKey;
#if HAVE_GNU_GET_LIBC_VERSION
//
// look for an glibc version specific charset remap
//
const char *glibc_version = gnu_get_libc_version();
if ((glibc_version != nsnull) && (strlen(glibc_version))) {
localeKey.AssignLiteral("nllic.");
localeKey.AppendWithConversion(glibc_version);
localeKey.AppendLiteral(".");
localeKey.AppendWithConversion(nl_langinfo_codeset);
nsAutoString uCharset;
res = gNLInfo->Get(localeKey, uCharset);
if (NS_SUCCEEDED(res)) {
aCharset.AssignWithConversion(uCharset);
res = VerifyCharset(aCharset);
if (NS_SUCCEEDED(res)) {
oString = aCharset;
return res;
}
}
}
#endif
//
// look for a charset specific charset remap
//
localeKey.AssignLiteral("nllic.");
localeKey.AppendWithConversion(nl_langinfo_codeset);
nsAutoString uCharset;
res = gNLInfo->Get(localeKey, uCharset);
if (NS_SUCCEEDED(res)) {
aCharset.AssignWithConversion(uCharset);
res = VerifyCharset(aCharset);
if (NS_SUCCEEDED(res)) {
oString = aCharset;
return res;
}
}
}
NS_ERROR("unable to use nl_langinfo(CODESET)");
#endif
//
// try falling back on a deprecated (locale based) name
//
char* locale = setlocale(LC_CTYPE, nsnull);
nsAutoString localeStr;
localeStr.AssignWithConversion(locale);
res = ConvertLocaleToCharsetUsingDeprecatedConfig(localeStr, oString);
if (NS_SUCCEEDED(res)) {
return res; // succeeded
}
oString.Truncate();
return res;
}
