parseus

def parse_domain(url):
    domain = ""

    dstart = url.find('://')
    if dstart == -1:
        dstart = 0
    else:
        dstart += 3

    dend = url[dstart:].find('/')
    if dend == -1:
        dend = len(url[dstart:])
    else:
        dend += dstart
    domain = url[dstart:dend]

    rd = domain[::-1]
    dot = rd.find('.') + 1
    dot += rd[dot:].find('.')
    domain = rd[dot-1::-1]

    return domain

def parse_params(url):
    params = dict()
    pstart = url.find('?') + 1
    paramstr = url[pstart:]
    i = 0
    flag = True
    param_name = ''
    param_val = ''
    while i < len(paramstr):
        if paramstr[i] not in '=&':
            if flag:
                param_name += paramstr[i]
            else:
                param_val += paramstr[i]
        elif paramstr[i] == '=':
            flag = False
        elif paramstr[i] == '&':
            flag = True
            params[param_name] = param_val
            param_name = param_val = ''
        i += 1
    params[param_name] = param_val
    return params

def parseus(url):
    return parse_domain(url), parse_params(url)