mdornseif

# osm_shortlink.py - MAximillian Dornseif 2013 - Public Domain
# see http://wiki.openstreetmap.org/wiki/Shortlink
# https://github.com/openstreetmap/openstreetmap-website/blob/master/lib/short_link.rb
# and makeShortCode in
# https://github.com/openstreetmap/openstreetmap-website/blob/master/app/assets/javascripts/application.js

# array of 64 chars to encode 6 bits. this is almost like base64 encoding, but
# the symbolic chars are different, as base64's + and / aren't very
# URL-friendly.
ARRAY = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_~'