Revision: 3921 Author: valhallasw Date: 2007-07-29 20:16:22 +0000 (Sun, 29 Jul 2007)

Log Message: ----------- Added BufferedReader

Added Paths: ----------- trunk/pywikiparser/BufferedReader.py

Added: trunk/pywikiparser/BufferedReader.py =================================================================== --- trunk/pywikiparser/BufferedReader.py (rev 0) +++ trunk/pywikiparser/BufferedReader.py 2007-07-29 20:16:22 UTC (rev 3921) @@ -0,0 +1,63 @@ +class BufferedReader(object): + def __init__(self, generator): + self.inbuffer = [] + self.outbuffer = [] + self.counter = -1 + self.generator = generator + self.gen = self._generator() + + self.gi_frame = self.gen.gi_frame + self.gi_running = self.gen.gi_running + self.__doc__ = "Buffered Generator. Added functions are commit() (clear buffer), undo (reset read pointer) and push (push data on the output buffer)" + + def __hash__(self, *args, **kwargs): + return self.gen.__hash__(*args, **kwargs) + + def __iter__(self, *args, **kwargs): + return self.gen.__iter__(*args, **kwargs) + + def __reduce__(self, *args, **kwargs): + return self.gen.__reduce__(*args, **kwargs) + + def __reduce_ex__(self, *args, **kwargs): + return self.gen.__reduce_ex__(*args, **kwargs) + + def __repr__(self, *args, **kwargs): + return 'Buffered version of %s' % (self.gen.__repr__(*args, **kwargs),) + + def __str__(self, *args, **kwargs): + return 'Buffered version of %s' % (self.gen.__str__(*args, **kwargs)) + + def next(self, *args, **kwargs): + return self.gen.next(*args, **kwargs) + + def peek(self): + if len(self.outbuffer) <= self.counter+1: + data = self.generator.next() + self.inbuffer.append(data) + self.outbuffer.append(data) + return self.outbuffer[self.counter+1] + + def _generator(self): + while(True): + self.counter += 1 + if len(self.outbuffer) <= self.counter: + data = self.generator.next() + self.inbuffer.append(data) + self.outbuffer.append(data) + yield self.outbuffer[self.counter] + + def commit(self): + self.inbuffer = self.inbuffer[self.counter+1:] + self.outbuffer = self.outbuffer[self.counter+1:] + self.counter = -1 + self.gen = self._generator() + + def undo(self): + self.outbuffer = self.inbuffer[:] + self.counter = -1 + self.gen = self._generator() + + def push(self, data): + self.outbuffer.append(data) + self.gen = self._generator() \ No newline at end of file

Property changes on: trunk/pywikiparser/BufferedReader.py ___________________________________________________________________ Name: svn:keywords + Id *.c = svn:eol-style=native *.cpp = svn:eol-style=native *.h = svn:eol-style=native *.dsp = svn:eol-style=CRLF *.dsw = svn:eol-style=CRLF *.sh = svn:eol-style=native Name: svn:executable *.txt + svn:eol-style=native *.png = svn:mime-type=image/png *.jpg = svn:mime-type=image/jpeg Makefile = svn:eol-style=native Name: svn:eol-style + native