diff options
Diffstat (limited to 'portato/eix/libeix.pyx')
-rw-r--r-- | portato/eix/libeix.pyx | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/portato/eix/libeix.pyx b/portato/eix/libeix.pyx deleted file mode 100644 index 2a1c7df..0000000 --- a/portato/eix/libeix.pyx +++ /dev/null @@ -1,102 +0,0 @@ -class EixError (Exception): - message = "Unknown error." - - def __str__ (self): - return self.message - -class EndOfFileException (EixError): - - def __init__ (self, filename): - self.message = "End of file reached though it was not expected: '%s'" % filename - -class EixReaderClosed (EixError): - message = "EixReader is already closed." - -class UnsupportedVersionError (EixError): - - def __init__ (self, version): - self.message = "Version '%s' is not supported." % version - -cdef class EixReader (object): - cdef object file - cdef char closed - - cdef readonly object filename - cdef readonly object version - - supported_versions = (28, ) - - def __init__ (self, filename): - self.filename = filename - self.file = open(filename, "r") - self.closed = 0 - - self.version = self._get_number() - - if self.version not in self.supported_versions: - raise UnsupportedVersionError(self.version) - - cdef unsigned long _get_number (self) except *: - cdef unsigned char n - cdef short count, i - cdef unsigned long value - cdef char* rest - cdef object orest - - n = self._get_one_byte() - - if n < 0xFF: - value = n - else: - count = 0 - - while (n == 0xFF): - count += 1 - n = self._get_one_byte() - - if n == 0: - n = 0xFF # 0xFF is encoded as 0xFF 0x00 - count -= 1 - - value = n << (count*8) - - if count > 0: - orest = self.get_string(count) - rest = orest # cast to char* - - for 0 <= i < count: - value += (<unsigned char>rest[i]) << ((count - i - 1)*8) - - return value - - cdef unsigned char _get_one_byte (self) except? 0: - s = self.file.read(1) - - if len(s) != 1: - raise EndOfFileException, self.filename - - return ord(s) - - cdef object _get_string (self, length): - if self.closed: - raise EixReaderClosed - - s = self.file.read(length) - - if len(s) != length: - raise EndOfFileException, self.filename - - return s - - def get_number (self): - if self.closed: - raise EixReaderClosed - - return self._get_number() - - def close (self): - if self.closed: - raise EixReaderClosed - - self.file.close() - self.closed = 1 |