def __init__(self, stream, needsVfsClose=False):
self.__stream = stream
self.__needsVfsClose = needsVfsClose
self.__reader = None
self.__writer = None
self.__lastWrite = False
if isinstance(stream, core.Istream):
self.__reader = core.StreamReader(stream, False)
if isinstance(stream, core.Ostream):
self.__writer = core.StreamWriter(stream, False)
self.__lastWrite = True
self.__write = self.__writer.appendData
def __init__(self, stream, needsVfsClose=False):
self.__stream = stream
self.__needsVfsClose = needsVfsClose
self.__reader = None
self.__writer = None
self.__lastWrite = False
if isinstance(stream, core.Istream):
self.__reader = core.StreamReader(stream, False)
if isinstance(stream, core.Ostream):
self.__writer = core.StreamWriter(stream, False)
self.__lastWrite = True
if sys.version_info >= (3, 0):
# In Python 3, we use appendData, which only accepts bytes.
self.__write = self.__writer.appendData
else:
# In Python 2.7, we also accept unicode objects, which are
# implicitly converted to C++ strings.
self.__write = self.__writer.write
def __init__(self, filename, mode = 'r', bufsize = None,
autoUnwrap = False):
self.__stream = None
self.__needsVfsClose = False
self.__reader = None
self.__writer = None
self.closed = True
self.encoding = None
self.errors = None
self.__lastWrite = False
self.mode = mode
self.name = None
self.filename = None
self.newlines = None
self.softspace = False
readMode = False
writeMode = False
if isinstance(filename, core.Istream) or isinstance(filename, core.Ostream):
# If we were given a stream instead of a filename, assign
# it directly.
self.__stream = filename
readMode = isinstance(filename, core.Istream)
writeMode = isinstance(filename, core.Ostream)
elif isinstance(filename, core.VirtualFile):
# We can also "open" a VirtualFile object for reading.
self.__stream = filename.openReadFile(autoUnwrap)
if not self.__stream:
message = 'Could not read virtual file %s' % (repr(filename))
raise IOError, message
self.__needsVfsClose = True
readMode = True
else:
# Otherwise, we must have been given a filename. Open it.
if isinstance(filename, types.StringTypes):
# If a raw string is given, assume it's an os-specific
# filename.
filename = core.Filename.fromOsSpecific(filename)
else:
# If a Filename is given, make a writable copy anyway.
filename = core.Filename(filename)
self.filename = filename
self.name = filename.toOsSpecific()
if sys.version_info >= (3, 0):
# Python 3 is much stricter than Python 2, which lets
# unknown flags fall through.
for ch in mode:
if not ch in 'rwxabt+U':
raise IOError("invalid mode: " + mode)
binary = False
if 'b' in mode and 't' in mode:
raise IOError("can't have text and binary mode at once")
if 'b' in mode:
# Strip 'b'. This means a binary file.
i = mode.index('b')
mode = mode[:i] + mode[i + 1:]
binary = True
elif 't' in mode:
# Strip 't'. This means a text file (redundant, yes).
i = mode.index('t')
mode = mode[:i] + mode[i + 1:]
binary = False
if 'U' in mode:
# Strip 'U'. We don't use it; universal-newline support
# is built into Panda, and can't be changed at runtime.
i = mode.index('U')
mode = mode[:i] + mode[i + 1:]
binary = False
if mode == '':
mode = 'r'
# Per Python docs, we insist this is true.
modeType = mode[0]
assert modeType in 'rwa'
if binary:
filename.setBinary()
else:
filename.setText()
# Actually open the streams, taking care to
# ignore unknown chars in the mode string.
# We already asserted that it starts with a mode
# char above, so locate the '+'
if modeType == 'w' and '+' in mode:
self.__stream = _vfs.openReadWriteFile(filename, True)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError(message)
readMode = True
writeMode = True
elif modeType == 'a' and '+' in mode:
self.__stream = _vfs.openReadAppendFile(filename)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError(message)
readMode = True
writeMode = True
elif modeType == 'r' and '+' in mode:
self.__stream = _vfs.openReadWriteFile(filename, False)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError(message)
readMode = True
writeMode = True
elif modeType == 'w':
self.__stream = _vfs.openWriteFile(filename, autoUnwrap, True)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError(message)
writeMode = True
elif modeType == 'a':
self.__stream = _vfs.openAppendFile(filename)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError(message)
writeMode = True
elif modeType == 'r':
self.__stream = _vfs.openReadFile(filename, autoUnwrap)
if not self.__stream:
if not _vfs.exists(filename):
message = 'No such file: %s' % (filename)
else:
message = 'Could not open %s for reading' % (filename)
raise IOError(message)
readMode = True
else:
# should not get here unless there's a bug above
raise IOError("Unhandled mode flags: " + mode)
self.__needsVfsClose = True
if readMode:
self.__reader = core.StreamReader(self.__stream, False)
if writeMode:
self.__writer = core.StreamWriter(self.__stream, False)
self.__lastWrite = True
def __init__(self, filename, mode = 'r', bufsize = None,
autoUnwrap = False):
self.__stream = None
self.__needsVfsClose = False
self.__reader = None
self.__writer = None
self.closed = True
self.encoding = None
self.errors = None
self.__lastWrite = False
self.mode = mode
self.name = None
self.filename = None
self.newlines = None
self.softspace = False
readMode = False
writeMode = False
if isinstance(filename, core.Istream) or isinstance(filename, core.Ostream):
# If we were given a stream instead of a filename, assign
# it directly.
self.__stream = filename
readMode = isinstance(filename, core.Istream)
writeMode = isinstance(filename, core.Ostream)
elif isinstance(filename, core.VirtualFile):
# We can also "open" a VirtualFile object for reading.
self.__stream = filename.openReadFile(autoUnwrap)
if not self.__stream:
message = 'Could not read virtual file %s' % (repr(filename))
raise IOError, message
self.__needsVfsClose = True
readMode = True
else:
# Otherwise, we must have been given a filename. Open it.
if isinstance(filename, types.StringTypes):
# If a raw string is given, assume it's an os-specific
# filename.
filename = core.Filename.fromOsSpecific(filename)
else:
# If a Filename is given, make a writable copy anyway.
filename = core.Filename(filename)
self.filename = filename
self.name = filename.toOsSpecific()
binary = False
if 'b' in mode:
# Strip 'b'. This means a binary file.
i = mode.index('b')
mode = mode[:i] + mode[i + 1:]
binary = True
if 'U' in mode:
# Strip 'U'. We don't use it; universal-newline support
# is built into Panda, and can't be changed at runtime.
i = mode.index('U')
mode = mode[:i] + mode[i + 1:]
binary = False
if mode == '':
mode = 'r'
# Per Python docs, we insist this is true.
assert mode[0] in 'rwa'
if binary:
filename.setBinary()
else:
filename.setText()
# Actually open the streams.
if mode == 'w':
self.__stream = _vfs.openWriteFile(filename, autoUnwrap, True)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError, message
writeMode = True
elif mode == 'a':
self.__stream = _vfs.openAppendFile(filename)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError, message
writeMode = True
elif mode == 'w+':
self.__stream = _vfs.openReadWriteFile(filename, True)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError, message
readMode = True
writeMode = True
elif mode == 'a+':
self.__stream = _vfs.openReadAppendFile(filename)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError, message
readMode = True
writeMode = True
elif mode == 'r+':
self.__stream = _vfs.openReadWriteFile(filename, False)
if not self.__stream:
message = 'Could not open %s for writing' % (filename)
raise IOError, message
readMode = True
writeMode = True
elif mode == 'r':
self.__stream = _vfs.openReadFile(filename, autoUnwrap)
if not self.__stream:
if not _vfs.exists(filename):
message = 'No such file: %s' % (filename)
else:
message = 'Could not open %s for reading' % (filename)
raise IOError, message
readMode = True
self.__needsVfsClose = True
if readMode:
self.__reader = core.StreamReader(self.__stream, False)
if writeMode:
self.__writer = core.StreamWriter(self.__stream, False)
self.__lastWrite = True