already_AddRefed<nsHyphenator>
nsHyphenationManager::GetHyphenator(nsIAtom *aLocale)
{
nsRefPtr<nsHyphenator> hyph;
mHyphenators.Get(aLocale, getter_AddRefs(hyph));
if (hyph) {
return hyph.forget();
}
nsCOMPtr<nsIFile> file = mPatternFiles.Get(aLocale);
if (!file) {
nsCOMPtr<nsIAtom> alias = mHyphAliases.Get(aLocale);
if (alias) {
mHyphenators.Get(alias, getter_AddRefs(hyph));
if (hyph) {
return hyph.forget();
}
file = mPatternFiles.Get(alias);
if (file) {
aLocale = alias;
}
}
if (!file) {
// In the case of a locale such as "de-DE-1996", we try replacing
// successive trailing subtags with "-*" to find fallback patterns,
// so "de-DE-1996" -> "de-DE-*" (and then recursively -> "de-*")
nsAtomCString localeStr(aLocale);
if (StringEndsWith(localeStr, NS_LITERAL_CSTRING("-*"))) {
localeStr.Truncate(localeStr.Length() - 2);
}
PRInt32 i = localeStr.RFindChar('-');
if (i > 1) {
localeStr.Replace(i, localeStr.Length() - i, "-*");
nsCOMPtr<nsIAtom> fuzzyLocale = do_GetAtom(localeStr);
return GetHyphenator(fuzzyLocale);
} else {
return nsnull;
}
}
}
hyph = new nsHyphenator(file);
if (hyph->IsValid()) {
mHyphenators.Put(aLocale, hyph);
return hyph.forget();
}
#ifdef DEBUG
nsCString msg;
file->GetNativePath(msg);
msg.Insert("failed to load patterns from ", 0);
NS_WARNING(msg.get());
#endif
mPatternFiles.Remove(aLocale);
return nsnull;
}
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
}
