# -*- coding: utf-8 -*-
import re

def get_referer(request, default=None):
    referer = request.META.get('HTTP_REFERER')
    if not referer:
        return default
    # remove the protocol and split the url at the slashes
    referer = re.sub('^https?:\/\/', '', referer).split('/')
    # add the slash at the relative path's view and finished
    referer = u'/' + u'/'.join(referer[1:])
    return referer

def split_params(st):
    st = st.split('/')
    params = []

    for item in st:
        n = item.find('-')
        if n != -1:
            params.append({'type': item[:n], 'url':item[n+1:]})

    return params