Error codes revisited

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As promised, I've been looking over the error handling (especially
the archived discussions) and it's a real rat's nest. :) I'm not
sure where we should start, but just getting some error codes
enabled and out there would be a great start. The protocol changes
can come later. And the codes should not be part of the string.

What about a variable that allowed the codes to be switched on so a
number is returned instead of a string? This would be off by default
so as not to break existing applications. Similarly, we can return
other information (FILE, LINE, etc.) with different variables. This
should all be doable without a protocol change, as long as everything
is returned as a string in a standard format.

- --
Greg Sabino Mullane greg(at)turnstep(dot)com
PGP Key: 0x14964AC8 200303041516

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