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Add default plural rules

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This makes the PO loader correctly handle the situation where the optional
`Plural-Forms` header field does not exist.

The `Translation` class and its subclasses always have access to valid plural
rules via `_get_plural_rules()`. Plural rules are prioritized:

1. `Translation.plural_rules_override`
2. `TranslationServer.get_plural_rules(locale)`
3. The English plural rules: `nplurals=2; plurals=(n != 1)`

Co-Authored-By: Pāvels Nadtočajevs <7645683+bruvzg@users.noreply.github.com>
This commit is contained in:
Haoyu Qiu
2025-07-21 17:59:14 +08:00
parent ebb96e2303
commit e882e42e1b
11 changed files with 202 additions and 61 deletions
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core/string/translation_server.h
+9 -7
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@@ -62,7 +62,7 @@ class TranslationServer : public Object {
String default_country;
HashSet<String> supported_countries;
};
static Vector<LocaleScriptInfo> locale_script_info;
static inline Vector<LocaleScriptInfo> locale_script_info;
struct Locale {
String language;
@@ -82,12 +82,13 @@ class TranslationServer : public Object {
Locale(const TranslationServer &p_server, const String &p_locale, bool p_add_defaults);
};
static HashMap<String, String> language_map;
static HashMap<String, String> script_map;
static HashMap<String, String> locale_rename_map;
static HashMap<String, String> country_name_map;
static HashMap<String, String> country_rename_map;
static HashMap<String, String> variant_map;
static inline HashMap<String, String> language_map;
static inline HashMap<String, String> script_map;
static inline HashMap<String, String> locale_rename_map;
static inline HashMap<String, String> country_name_map;
static inline HashMap<String, String> country_rename_map;
static inline HashMap<String, String> variant_map;
static inline HashMap<String, String> plural_rules_map;
void init_locale_info();
@@ -113,6 +114,7 @@ public:
String get_country_name(const String &p_country) const;
String get_locale_name(const String &p_locale) const;
String get_plural_rules(const String &p_locale) const;
PackedStringArray get_loaded_locales() const;