3
\
@ s4 d dl Zd dlZddgZdd Zdd Zdd ZdS ) Nurl2pathnamepathname2urlc C st t jj| d }|r$|dkr$td| d d dkrB| dd } n| d d dkrZtd| jd}d}x|t|k r|| d kr||= qj|| d
kr|dkr||d dkr||d |d = |d }qj|| dkr|dkr||d dkr||= qj|d }qjW |d s"d
j|dd }nFd}x2|t|k rX|| d
krXd||<