On Sunday, June 22, 2003 Eugene van der Pijll wrote: >Bruce Van Allen schreef: >> From a string in the form YYYYMM, the DT::F::ISO8601 parser >> should return a DT object identical to the DateTime object >> instantiated from >> $dt = DateTime->new( >> year => 2003, >> month => 6. >> ); > >No. > >Let me show you a couple of ISO8601 time intervals, and my >interpretation of them: > >Tomorrow, I have a meeting on "2003-06-22T15/17". I would expect this >meeting to start at 15:00:00, and to end at 17:00:00. That is, both >start and end times are rounded down. > >This year, the Tour de France is "2003-07-05/2003-07-27". Cyclist >shouldn't expect to go shopping in Paris on the 27th, as they will be >busy until late that day (besides, it's a Sunday and the shops will be >closed). The best interpretation of that end date is something like >2003-07-27T23:59:59 or 2003-07-28T00:00:00. That is, end date is rounded >up (and the start date is rounded down). > >Julius Ceasar lived "-0099/-0043". The starting date should here be >interpreted as "somewhere in 100BC, and the end date should be >interpreted as "the ides of March 44BC". Setting both to Jan 1st would >be simply wrong.
Got it. I was seeing YYYY-MM only as a truncated date. Seems a challenge to devise rules for this. - Bruce __bruce__van_allen__santa_cruz__ca__
