Mailbox, tell and read
Gordon McMillan
gmcm at hypernet.com
Thu Jul 1 00:14:42 EDT 1999
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Thu Jul 1 00:14:42 EDT 1999
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Paul Prescod writes: > The mailbox message objects simulate a file interface by seeking > through a mailbox. A read() returns the entire message. It does this > by seeking to the start, reading to the message end, and returning > the data. The problem is that message offsets are derived by > file.tell() which I presume is in terms of bytes. But then it does a > read() based on the offsets and read() is in terms of characters. > > These don't match up on Windows because of CR/LF pairs. I think that > the right fix is to never use tell() and instead keep track of the > location by counting characters. Does that make sense? -- How 'bout opening in binary, and munging line endings yourself just before returning the message? If you can't use tell(), you can't trust seek(), either. - Gordon
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