Function keycode_is_printable

crawl-ref/source/macro.cc:1823–1847

#endif

bool keycode_is_printable(int keycode)
{
    switch (keycode)
    {
    case  0:
    case  8:
    case  9:
    case 27:
    case '\n':
    case '\r':
        return false;
    default:
#ifdef USE_TILE_LOCAL
        // the upper bound here is based on a comment in
        // windowmanager-sdl.cc:_translate_keysym. It could potentially be
        // applied more generally but I'm concerned about non-US keyboard
        // layouts etc. I'm also not sure how accurate it is for sdl...
        return keycode >= 32 && keycode < 256;
#elif defined(USE_TILE_WEB)
        return keycode >= 32 && keycode < 128;
#else
        return keycode >= 32;
#endif
    }
}

string keycode_to_name(int keycode, bool shorten)
{