diff options
Diffstat (limited to 'Lib/gzip.py')
| -rw-r--r-- | Lib/gzip.py | 51 |
1 files changed, 29 insertions, 22 deletions
diff --git a/Lib/gzip.py b/Lib/gzip.py index 26d32aa..3d656b9 100644 --- a/Lib/gzip.py +++ b/Lib/gzip.py @@ -80,7 +80,6 @@ class GzipFile: self._write_gzip_header() elif self.mode == READ: self._read_gzip_header() - def __repr__(self): s = repr(self.fileobj) @@ -161,19 +160,20 @@ class GzipFile: def read(self,size=None): if self.extrasize <= 0 and self.fileobj is None: return '' - - if not size: - # get the whole thing + + readsize = 1024 + if not size: # get the whole thing try: while 1: - self._read() + self._read(readsize) + readsize = readsize * 2 except EOFError: size = self.extrasize - else: - # just get some more of it + else: # just get some more of it try: while size > self.extrasize: - self._read() + self._read(readsize) + readsize = readsize * 2 except EOFError: pass @@ -183,8 +183,15 @@ class GzipFile: return chunk - def _read(self): - buf = self.fileobj.read(1024) + def _unread(self, buf): + self.extrabuf = buf + self.extrabuf + self.extrasize = len(buf) + self.extrasize + + def _read(self, size=1024): + try: + buf = self.fileobj.read(size) + except AttributeError: + raise EOFError, "Reached EOF" if buf == "": uncompress = self.decompress.flush() if uncompress == "": @@ -237,21 +244,21 @@ class GzipFile: return 0 def readline(self): - # XXX This function isn't implemented in a very efficient way - line="" + bufs = [] + readsize = 100 while 1: - c = self.read(1) - line = line + c - if c=='\n' or c=="": break - return line + c = self.read(readsize) + i = string.find(c, '\n') + if i >= 0 or c == '': + bufs.append(c[:i]) + self._unread(c[i+1:]) + return string.join(bufs, '') + bufs.append(c) + readsize = readsize * 2 def readlines(self): - L=[] - line = self.readline() - while line!="": - L.append(line) - line = self.readline() - return L + buf = self.read() + return string.split(buf, '\n') def writelines(self, L): for line in L: |