LibUnicode: Parse and generate per-locale plural ranges

Author: https://github.com/trflynn89
Commit: a337b059dd
Pull-request: https://github.com/SerenityOS/serenity/pull/14557
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibUnicode/PluralRules.cpp

@@ -40,4 +40,9 @@ Span<PluralCategory const> __attribute__((weak)) available_plural_categories(Str
     return categories.span();
 }
 
+PluralCategory __attribute__((weak)) determine_plural_range(StringView, PluralCategory, PluralCategory)
+{
+    return PluralCategory::Other;
+}
+
 }

Userland/Libraries/LibUnicode/PluralRules.h

@@ -119,5 +119,6 @@ constexpr StringView plural_category_to_string(PluralCategory category)
 
 PluralCategory determine_plural_category(StringView locale, PluralForm form, PluralOperands operands);
 Span<PluralCategory const> available_plural_categories(StringView locale, PluralForm form);
+PluralCategory determine_plural_range(StringView locale, PluralCategory start, PluralCategory end);
 
 }