Is icu-1.7-0.pre.20001012 an okay version name?

[Yves Arrouye]

In my quest to figure out how to number a prerelease package for ICU that
will be upgraded by icu-1.7-1 (final release), I came up with names like:

        1.7.0.pre.20001012

which work w/ dpkg version comparison but also mean that the Debian revision
is non-numeric, as it is 0.pre.20001012. Is that allowed?

Thanks,
YA

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