[tz] [PATCH] New file 'pre1970' for zones that differ only in pre-1970 time stamps.
zefram at fysh.org
Sun Sep 1 02:46:45 UTC 2013
> Next up is use of tzwinnow in tzselect, which is the
>point at which we start to get a tangible benefit, so that's probably
>when I should start actually posting the patches.
Now implemented this. Interesting discovery: this is actually the
most complex place to apply winnowing. It's not just a matter of
making links: the region descriptions in zone.tab have to be merged,
and doing that in a way that produces legible results takes some effort.
I'm happy with the results I'm getting.
OK, patches. You can pull the changes from my git repo,
<git://git.fysh.org/zefram/tz.git> branch zefram/winnow. It's based on
Eggert's current master branch. Unfortunately the first patch, which
adds the population data, is a bit big for the mailing list:
$ wc 00*
4068 25639 172653 0001-add-Wikipedia-URLs-and-population-data.patch
311 1739 11259 0002-generate-file-of-normalised-population-figures.patch
276 1539 9871 0003-restore-the-rest-of-the-pre-1970-data.patch
919 4059 24752 0004-new-program-tzwinnow.patch
427 2441 17202 0005-optionally-winnow-zone-list-in-tzselect.patch
6001 35417 235737 total
So I won't post the patches here unless instructed.
The third patch is optional. The other four are sequentially
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