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Refactor Unix locale creation code

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Just extract the code trying to find the matching locale into its own
function.

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This commit is contained in:
Vadim Zeitlin
2021-09-04 14:50:01 +02:00
parent 836f5abc3d
commit 4c9c5d08cb
1 changed files with 50 additions and 42 deletions
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92
src/unix/uilocale.cpp
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@@ -96,6 +96,55 @@ locale_t TryCreateLocaleWithUTF8(wxLocaleIdent& locId)
return loc;
}
// Try finding a locale for the given identifier, modifying the argument to
// match the found locale if necessary.
locale_t TryCreateMatchingLocale(wxLocaleIdent& locId)
{
locale_t loc = TryCreateLocaleWithUTF8(locId);
if ( !loc )
{
// Try to find a variant of this locale available on this system: first
// of all, using just the language, without the territory, typically
// does _not_ work under Linux, so try adding one if we don't have it.
if ( locId.GetRegion().empty() )
{
const wxString lang = locId.GetLanguage();
const wxLanguageInfos& infos = wxGetLanguageInfos();
for ( wxLanguageInfos::const_iterator it = infos.begin();
it != infos.end();
++it )
{
const wxString& fullname = it->CanonicalName;
if ( fullname.BeforeFirst('_') == lang )
{
// We never have encoding in our canonical names, but we
// can have modifiers, so get rid of them if necessary.
const wxString&
region = fullname.AfterFirst('_').BeforeFirst('@');
if ( !region.empty() )
{
loc = TryCreateLocaleWithUTF8(locId.Region(region));
if ( loc )
{
// We take the first available region, we don't
// have enough data to know how to prioritize them
// (and wouldn't want to start any geopolitical
// disputes).
break;
}
}
// Don't bother reverting region to the old value as it will
// be overwritten during the next loop iteration anyhow.
}
}
}
}
return loc;
}
#endif // HAVE_LOCALE_T
} // anonymous namespace
@@ -353,48 +402,7 @@ wxUILocaleImpl* wxUILocaleImpl::CreateForLocale(const wxLocaleIdent& locIdOrig)
// Make a copy of it because it can be modified below.
wxLocaleIdent locId = locIdOrig;
locale_t loc = TryCreateLocaleWithUTF8(locId);
if ( !loc )
{
// Try to find a variant of this locale available on this system: first
// of all, using just the language, without the territory, typically
// does _not_ work under Linux, so try adding one if we don't have it.
if ( locId.GetRegion().empty() )
{
const wxString lang = locId.GetLanguage();
const wxLanguageInfos& infos = wxGetLanguageInfos();
for ( wxLanguageInfos::const_iterator it = infos.begin();
it != infos.end();
++it )
{
const wxString& fullname = it->CanonicalName;
if ( fullname.BeforeFirst('_') == lang )
{
// We never have encoding in our canonical names, but we
// can have modifiers, so get rid of them if necessary.
const wxString&
region = fullname.AfterFirst('_').BeforeFirst('@');
if ( !region.empty() )
{
loc = TryCreateLocaleWithUTF8(locId.Region(region));
if ( loc )
{
// We take the first available region, we don't
// have enough data to know how to prioritize them
// (and wouldn't want to start any geopolitical
// disputes).
break;
}
}
// Don't bother reverting region to the old value as it will
// be overwritten during the next loop iteration anyhow.
}
}
}
}
const locale_t loc = TryCreateMatchingLocale(locId);
if ( !loc )
return NULL;