Function isalnum_nolocale

include/recompiler/context.h:619–621

Locale-independent ASCII-only version of isalnum.

    
    // Locale-independent ASCII-only version of isalnum.
    inline bool isalnum_nolocale(char c) {
        return isalpha_nolocale(c) || (c >= '0' && c <= '9');
    }

    inline bool validate_mod_id(std::string_view str) {
        // Disallow empty ids.