[tz] 2021e Asia/Dushanbe

Nick Deguillaume nickledeg at gmail.com
Sat May 14 10:00:10 UTC 2022


Thanks for the effortful response. This motivates me to contribute more to
the project in the future.

On Sat, 14 May 2022, 08:51 Paul Eggert, <eggert at cs.ucla.edu> wrote:

> On 5/13/22 13:51, Nick Deguillaume wrote:
>
> > I now recognise that I would have been better off using the zic
> > documentation as my primary source.
>
> Yes, that's a better approach. In the attached patch (which I've
> installed in the development version) I added a note to that effect in
> the how-to document.
>
>
> > 1. tz_link.html  states that:
> > *Sources for the tz database are UTF-8 text files... *
> > Some of the comments in some of the old files contain non UTF-8 single
> byte
> > representations of accented letters.
>
> Thanks, fixed in the attached proposed patch by saying it's been UTF-8
> since 2013a.
>
>
> > 2. The  tz_how-to.html states that:
> > *Prior to the 2020b release, it was called the TYPE field, though it was
> > never used in the main data ...*
> > However, some of the old data in
> https://data.iana.org/time-zones/releases/
> > contains "even" and "odd" to account for the Adeleide festival. (
>
> Fixed in the attached by saying it's been the practice since 2000e.
>
>
> > 3. The  tz_how-to.html states that:
> >
> > *The FORMAT column specifies the usual abbreviation of the time zone
> name.
> > It can have one of three forms:a string of three or more characters that
> > are either ASCII alphanumerics, “+”, or “-”, in which case that’s the
> > abbreviation ...*
> > I had to allow an underscore and space to allow all the files to pass.
>
> Fixed in the attached by saying "should" instead of "can". Older data
> sometimes violated that advice, but this meant the resulting
> abbreviations didn't conform to POSIX. I also added a mention of %z there.
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