B �~Se=�@sdZyddlmZWn ek r4ddlmZYnXddlmZmZddlmZm Z ddl mZmZm Z ddl mZmZdd�Zed �Zd d�Zdd �Zedkr�ddlZddlmZdZedeej�edd�d��Zedeej�edd�d��Zeej�dS)z7 $Id: tzfile.py,v 1.8 2004/06/03 00:15:24 zenzen Exp $ �)�StringIO)�datetime� timedelta)�unpack�calcsize)�StaticTzInfo� DstTzInfo�memorized_ttinfo)�memorized_datetime�memorized_timedeltacCs |�d�S)z5Cast a string or byte string to an ASCII byte string.�ASCII)�encode)�s�r�|� t |�}|d k�r*t|�}t|||��||<|�||t ||d �||f�|d7}q�Wt|�d k�s�t|�d k�r�|d d |d dft|tft|t|d d �|d dd��}�n�d }x||d �r�|d 7}�q�W||||d k�rtj|d <n|�d tj�|�d |�g}�x&tt|��D�]}|||}|d }|d �snd }n�x2t|d dd�D]}|||}|d �s�P�q�W|d |d }|d k�s�|dk�rxNt|d t|��D]8}|||}|d �s�|d |d }|d k�r�P�q�W|d} t|dd�d}t|dd�d}|�t||| ��qDWt|tft|||d��}|�S)Nz>4s c 15x 6l�TZifzGot magic %sz2>%(timecnt)dl %(timecnt)dB %(ttinfo)s %(charcnt)ds�lBB)�timecnt�ttinfo�charcnt��cSsg|]}t|��qSr)r )�.0�transrrr� +sz build_tzinfo..��r)�zone� _utcoffset�_tznamei0*��<)r"�_utc_transition_times�_transition_info)rr�readr�AssertionError�repr�dict�len�list�find�_NULLr�append�bool�typerrr�min�insert�range�intr r)!r"�fp�head_fmt� head_size�magic�format� ttisgmtcnt� ttisstdcnt�leapcntr�typecntr�data_fmt� data_size�data�transitions�lindexes� ttinfo_raw�tznames_rawr�tznames�i� tzname_offset�nul�cls�transition_info�inf� utcoffset�dst�j�prev_inf�stdinf�tznamerrr�build_tzinfos� rU�__main__N)�pprintz/usr/share/zoneinfozAustralia/MelbourneZ AustraliaZ Melbourne�rbz US/EasternZUSZEastern)�__doc__Z cStringIOr�ImportError�iorr�structrr�pytz.tzinforrr r rrr0rrU�__name__�os.path�osrW�base�open�path�join�tzr'rrrr�s*e