IsARolePlayName with name filter

new DisallowedNames[][MAX_PLAYER_NAME] = {
    "Harry_Potter",
    "Barack_Obama",
    "Michael_Jackson"
};

stock IsARolePlayName(name[])
{
    new
                szLastCell,
        bool:   bUnderScore;

    for(new i; i < strlen(name); i++)
    {
        if(name[i] == '_')
        {
            if(bUnderScore == true)
            {
                return 0;
            }

            bUnderScore = true;
        }

        else if(!szLastCell || szLastCell == '_') // Check if capitalized where it should be
        {
            if(name[i] < 'A' || name[i] > 'Z')
            {
                return 0;
            }
        }

        else
        {
            if(name[i] < 'a' || name[i] > 'z')
                return 0;
        }

        szLastCell = name[i];
    }

    if(bUnderScore == false)
        return 0;

    for(new i; i < sizeof(DisallowedNames); i++)
    {
        if(!strcmp(name, DisallowedNames[i]))
        {
            return 0;
        }
    }

    return 1;
}