Well, if an extra file contains an information per rule line how to interprete SAVE=0 (in case of Ireland: grasping the daylight-entry of CLDR which points to the label "Irish Standard Time", default: grasping the standard-entry of CLDR) for correct localized labelling then it will probably be fine to live without any restrictions so multiply-named rules can be avoided. What about a new file which actually just contains a copy of Eire rules with additional META column containing key-value pairs in format "season=W" (winter) or "season=S" (summer)? Here stable documented keys and values are important, of course. The new file can be safely ignored by zic but help other tz-compilers to easily determine localized labels of timezones in unchanged CLDR-entries. I just try to find a compromise with minimalistic impact on all sides. Am 28.01.2018 um 01:32 schrieb Paul Eggert:
Meno Hochschild wrote:
I would prefer not to have mixed signs within the same set of rules equally named.
Wouldn't that in some cases force rulesets to be split into multiply-named Rules merely to satisfy the restriction, thus complicating Zones that refer to the affected rulesets? That doesn't sound like a good restriction to add, at least from the tzcode/tzdata point of view.