Ζ
Μή?:c       sP   d  Z  d k Z d k Z d f  d     YZ d   Z e d j o e   n d S(   s	  File-like objects that read from or write to a string buffer.

This implements (nearly) all stdio methods.

f = StringIO()      # ready for writing
f = StringIO(buf)   # ready for reading
f.close()           # explicitly release resources held
flag = f.isatty()   # always false
pos = f.tell()      # get current position
f.seek(pos)         # set current position
f.seek(pos, mode)   # mode 0: absolute; 1: relative; 2: relative to EOF
buf = f.read()      # read until EOF
buf = f.read(n)     # read up to n bytes
buf = f.readline()  # read until end of line ('
') or EOF
list = f.readlines()# list of f.readline() results until EOF
f.truncate([size])  # truncate file at to at most size (default: current pos)
f.write(buf)        # write at current position
f.writelines(list)  # for line in list: f.write(line)
f.getvalue()        # return whole file's contents as a string

Notes:
- Using a real file is often faster (but less convenient).
- There's also a much faster implementation in C, called cStringIO, but
  it's not subclassable.
- fileno() is left unimplemented so that code which uses it triggers
  an exception early.
- Seeking far beyond EOF and then writing will insert real null
  bytes that occupy space in the buffer.
- There's a simple test set (see end of this file).
Ns   StringIOc      s   d d  Z  d   Z d   Z d d  Z d   Z d	 d  Z e d
  Z d d  Z e d  Z	 d   Z
 d   Z d   Z d   Z RS(   Nc    s@   | |  _  t |  |  _ g  |  _ d |  _ d |  _ d |  _ d  S(   Ni    (   s   bufs   selfs   lens   buflists   poss   closeds	   softspace(   s   selfs   bufs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   __init__$ s    				s    c    s(   |  i o d |  _ |  ` |  ` n d  S(   Ni   (   s   selfs   closeds   bufs   pos(   s   selfs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   close+ s    	c    s   |  i o t d  n d Sd  S(   Ns   I/O operation on closed filei    (   s   selfs   closeds
   ValueError(   s   selfs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   isatty/ s    
c    s   |  i o t d  n |  i o, |  i t i |  i d  |  _ g  |  _ n | d j o | |  i } n | d j o | |  i	 } n t
 d |  |  _ d  S(   Ns   I/O operation on closed files    i   i   i    (   s   selfs   closeds
   ValueErrors   buflists   bufs   strings
   joinfieldss   modes   poss   lens   max(   s   selfs   poss   modes7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   seek3 s    

i    c    s"   |  i o t d  n |  i Sd  S(   Ns   I/O operation on closed file(   s   selfs   closeds
   ValueErrors   pos(   s   selfs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   tell> s    
c    s€   |  i o t d  n |  i o, |  i t i |  i d  |  _ g  |  _ n | d j  o |  i } n t
 |  i | |  i  } |  i |  i | !} | |  _ | Sd  S(   Ns   I/O operation on closed files    i    (   s   selfs   closeds
   ValueErrors   buflists   bufs   strings
   joinfieldss   ns   lens   newposs   mins   poss   r(   s   selfs   ns   newposs   rs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   readB s    

	i   c    sζ   |  i o t d  n |  i o, |  i t i |  i d  |  _ g  |  _ n t i |  i d |  i  } | d j  o |  i
 } n | d } | t j	 o) |  i | | j  o |  i | } n n |  i |  i | !} | |  _ | Sd  S(   Ns   I/O operation on closed files    s   
i    i   (   s   selfs   closeds
   ValueErrors   buflists   bufs   strings
   joinfieldss   finds   poss   is   lens   newposs   lengths   Nones   r(   s   selfs   lengths   is   newposs   rs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   readlineO s    


	c    s{   d } g  } |  i   } xX | oP | i |  | t |  7} d | j  o
 | j n o Pn |  i   } q W| Sd  S(   Ni    (   s   totals   liness   selfs   readlines   lines   appends   lens   sizehint(   s   selfs   sizehints   totals   liness   lines7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys	   readlines` s     c    s   |  i o t d  n | t j o |  i } nA | d j  o t t i d   n | |  i j  o | |  _ n |  i	   |  |  _
 d  S(   Ns   I/O operation on closed filei    s   Negative size not allowed(   s   selfs   closeds
   ValueErrors   sizes   Nones   poss   IOErrors   errnos   EINVALs   getvalues   buf(   s   selfs   sizes7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   truncatek s    
	c    s7  |  i o t d  n | o d  Sn |  i |  i j o. |  i i d |  i |  i  |  i |  _ n |  i t |  } |  i |  i j  o |  i o, |  i	 t
 i |  i d  |  _	 g  |  _ n |  i	 |  i  | |  i	 | g |  _ d |  _	 | |  i j o | |  _ n n |  i i |  | |  _ | |  _ d  S(   Ns   I/O operation on closed files    s    (   s   selfs   closeds
   ValueErrors   ss   poss   lens   buflists   appends   newposs   bufs   strings
   joinfields(   s   selfs   ss   newposs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   writev s&    
 
#		c    s   |  i t i | d   d  S(   Ns    (   s   selfs   writes   strings
   joinfieldss   list(   s   selfs   lists7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys
   writelines s    c    s   |  i o t d  n d  S(   Ns   I/O operation on closed file(   s   selfs   closeds
   ValueError(   s   selfs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   flush s    
c    sA   |  i o, |  i t i |  i d  |  _ g  |  _ n |  i Sd  S(   Ns    (   s   selfs   buflists   bufs   strings
   joinfields(   s   selfs7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   getvalue s    
(   s   __init__s   closes   isattys   seeks   tells   reads   Nones   readlines	   readliness   truncates   writes
   writeliness   flushs   getvalue(    s7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   StringIO# s    						c  
   s:  d  k  }  |  i d o |  i d } n d } t | d  i   } t | d  i   } t   } x" | d  d r } | i |  qo W| i | d  | i   | j o t d  n | i   } d G| GH| i t | d   | i | d  | i d  d G| i   GH| i   } | i   } d	 G| GH| i t |  d  | i t |   } | | j o t d
  n | i t |  d  | i   }	 |	 d } | i | i   t |   | i   } | | j o t d  n d Gt |	  Gd GHd G| i   GH| i   | j o t d  n | i   d  S(   Ni   s   /etc/passwds   ri   i    s   write faileds   File length =s   First line =s   Second line =s   bad result after seek backs#   bad result after seek back from EOFs   Reads
   more liness
   bad length(   s   syss   argvs   files   opens	   readliness   liness   reads   texts   StringIOs   fs   lines   writes
   writeliness   getvalues   RuntimeErrors   tells   lengths   seeks   lens   readlines   heres   line2s   lists   close(
   s   syss   files   liness   texts   fs   lines   lengths   heres   line2s   lists7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   test sL    		 	
s   __main__(   s   __doc__s   errnos   strings   StringIOs   tests   __name__(    s7   /home/guest/edwardam/cmp2/py2/lib/python2.0/StringIO.pys   ? s   		u	(