I don't think we should have a two-byte magic value. Especially where those two bytes are printable, 7-bit ASCII. "But it is four bytes," you say. Nope. It is two plus a couple parameters that can now change over time. To ensure uniqueness, I think a four-byte magic should stay. I would recommend the approach of adding opcodes into the marshal format. Specifically, 'V' followed by a single byte. That can only occur at the beginning. If it is not present, then you know that you have an old marshal value. Cheers, -g On Sun, 28 May 2000, Christian Tismer wrote:
Peter Funk wrote:
[...]
For simplicity, comapibility and ease of change, I vote with +1 for adopting the solution of
byte 0: 'P' byte 1: 'Y' byte 2: version number (counting from 1) byte 3: option byte (8 bits: one for each option; bit 0: -U cmd switch)
If that turns out to be insufficient in some future, do a complete redesign.
What about the CR/LF issue with some Mac Compilers (see Guido's mail for details)? Can we simply drop this?
Well, forgot about that. How about swapping bytes 0 and 1?
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