On 2024-02-17 19:14, Bruno Haible wrote:
Brian Inglis wrote:
I was looking around ... that required data can be shrunk to ~300KB using
Brotli!?
Whereas the entire tzdata.zi (without comments, and with abbreviations) is
only around 100 KB. I'll definitely prefer the latter.
Other options would be for some selection of generated data such as using
zonenow.tab, supporting only the current time onward
This is a simplification that one may do when working on an embedded system
or such. But not in gnulib. When the entire data file is 100 KB, it is not
a good compromise to give up correctness for dates in the past, in exchange
for further data size reduction.
https://github.com/unicode-org/cldr/blob/main/common/supplemental/windowsZones.xml
This file is interesting for its mapping table from Windows time zones.
My point was that this data is already built into Windows, and accessible via
its ICU API, so gnulib does not need to include, update, and compile tzdata to
support Windows.
It just has to adapt its localization, as does Cygwin, which uses the Windows
zones to look up tz ids, which it uses to load tzdata to provide POSIX
interfaces, using otherwise mostly BSD code adapted from tzcode, required by
newlib to allow commercial and other uses by RedHat and other embedded vendors.
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
