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[libcalamares] Special-case the regions through the lookup-table as well

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This commit is contained in:
Adriaan de Groot 2022-05-05 15:20:29 +02:00
parent 2de7736291
commit 4be25e2f70
1 changed files with 55 additions and 38 deletions
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93
src/libcalamares/locale/Translation.cpp
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@ -16,6 +16,7 @@
struct TranslationSpecialCase
{
const char* id; // The Calamares ID for the translation
const char** regions;
QLocale::Language language;
QLocale::Script script;
@ -23,19 +24,6 @@ struct TranslationSpecialCase
const char* name; // Native name, if different from Qt
constexpr TranslationSpecialCase( const char* i,
QLocale::Language l,
QLocale::Script s,
QLocale::Country c,
const char* n )
: id( i )
, language( l )
, script( s )
, country( c )
, name( n )
{
}
constexpr bool customLocale() const { return language != QLocale::Language::AnyLanguage; }
};
@ -47,58 +35,87 @@ struct TranslationSpecialCase
* is not @c AnyLanguage. The @p name is used as a human-readable
* native name if the Qt name is not suitable.
*
* Another form of lookup maps a @p language + a region-identifier
* to a @p id, running around Qt's neglect of `@region` variants.
*
* Examples:
* - `sr@latin` needs specific Qt Locale settnigs, but the name is OK
* - Chinese needs a specific name, but the Locale is OK
*/
static const char* serbian_latin_regions[] = { "latin", "latn", nullptr };
static const char* catalan_regions[] = { "valencia", nullptr };
static constexpr const TranslationSpecialCase special_cases[] = {
{ "sr@latin", QLocale::Language::Serbian, QLocale::Script::LatinScript, QLocale::Country::Serbia, nullptr },
{ "sr@latin",
serbian_latin_regions,
QLocale::Language::Serbian,
QLocale::Script::LatinScript,
QLocale::Country::Serbia,
nullptr },
// Valencian is a regional variant of Catalan
{ "ca@valencia",
QLocale::Language::AnyLanguage,
catalan_regions,
QLocale::Language::Catalan,
QLocale::Script::AnyScript,
QLocale::Country::AnyCountry,
"Català (València)" },
// Simplified Chinese, but drop the (China) from the name
{ "zh_CN", QLocale::Language::AnyLanguage, QLocale::Script::AnyScript, QLocale::Country::AnyCountry, "简体中文" },
{ "zh_CN",
nullptr,
QLocale::Language::AnyLanguage,
QLocale::Script::AnyScript,
QLocale::Country::AnyCountry,
"简体中文" },
// Traditional Chinese, but drop (Taiwan) from the name
{ "zh_TW", QLocale::Language::AnyLanguage, QLocale::Script::AnyScript, QLocale::Country::AnyCountry, "繁體中文" },
{ "zh_TW",
nullptr,
QLocale::Language::AnyLanguage,
QLocale::Script::AnyScript,
QLocale::Country::AnyCountry,
"繁體中文" },
};
static_assert( std::size( special_cases ) == 4 );
static inline bool
lookup_region( const QByteArray& region, const char** regions_list )
{
if ( regions_list )
{
while ( *regions_list )
{
if ( region == *regions_list )
{
return true;
}
regions_list++;
}
}
return false;
}
static QString
specialCaseSystemLanguage()
{
const QByteArray lang_p = qgetenv( "LANG" );
if ( lang_p.isEmpty() )
{
// This will figure out the system language some other way
return {};
QString lang = QString::fromLatin1( lang_p );
if ( lang.isEmpty() )
return {};
}
QStringList lang_parts = lang.split( QLatin1Char( '@' ) );
auto lang_parts = lang_p.split( '@' );
if ( lang_parts.size() != 2 )
{
return {};
QString region = lang_parts[ 1 ];
QLocale locale( lang );
const QString serbian_latin = QStringLiteral( "latin" );
const QString serbian_latin_variant = QStringLiteral( "latn" );
if ( locale.language() == QLocale::Serbian && ( region == serbian_latin || region == serbian_latin_variant ) )
{
return QStringLiteral( "sr@latin" );
}
const QString valencian = QStringLiteral( "valencia" );
if ( locale.language() == QLocale::Catalan && region == valencian )
{
return QStringLiteral( "ca@valencia" );
}
return {};
QLocale locale( QString::fromLatin1( lang_p ) );
auto it
= std::find_if( std::cbegin( special_cases ),
std::cend( special_cases ),
[ language = locale.language(), region = lang_parts[ 1 ] ]( const TranslationSpecialCase& s )
{ return ( s.language == language ) && lookup_region( region, s.regions ); } );
return ( it != std::cend( special_cases ) ) ? QString::fromLatin1( it->id ) : QString();
}
namespace CalamaresUtils