Vega strike Python Modules doc: _Hqxdecoderengine Class Reference

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Public Member Functions
def	__init__

def	read

def	close

Data Fields
	ifp

	eof

Detailed Description

Read data via the decoder in 4-byte chunks

Definition at line 279 of file binhex.py.

Constructor & Destructor Documentation

def __init__	(	self,
		ifp
	)

Definition at line 282 of file binhex.py.

 
     def __init__(self, ifp):
         self.ifp = ifp
         self.eof = 0

Member Function Documentation

def close ( self)

Definition at line 320 of file binhex.py.

 
     def close(self):
         self.ifp.close()

def read	(	self,
		totalwtd
	)

Read at least wtd bytes (or until EOF)

Definition at line 286 of file binhex.py.

References _Hqxdecoderengine.eof.

 
     def read(self, totalwtd):
         """Read at least wtd bytes (or until EOF)"""
         decdata = ''
         wtd = totalwtd
         #
         # The loop here is convoluted, since we don't really now how
         # much to decode: there may be newlines in the incoming data.
         while wtd > 0:
             if self.eof: return decdata
             wtd = ((wtd+2)//3)*4
             data = self.ifp.read(wtd)
             #
             # Next problem: there may not be a complete number of
             # bytes in what we pass to a2b. Solve by yet another
             # loop.
             #
             while 1:
                 try:
                     decdatacur, self.eof = \
                             binascii.a2b_hqx(data)
                     break
                 except binascii.Incomplete:
                     pass
                 newdata = self.ifp.read(1)
                 if not newdata:
                     raise Error, \
                           'Premature EOF on binhex file'
                 data = data + newdata
             decdata = decdata + decdatacur
             wtd = totalwtd - len(decdata)
             if not decdata and not self.eof:
                 raise Error, 'Premature EOF on binhex file'
         return decdata

Public Member Functions

Data Fields

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