Comment by s0fasurfa

Nice idea, but the calendar format is a bit verbose for my taste. Week number is something I would have to look up constantly and surely get wrong more than once.

If you want to follow UNIX philosophy, why don't you write an augmenter/converter tool `caug` that adds "computed" information such as week number, weekday or even relative date?

  > cat calendar-src.txt

    2025
    ====
    03-01 9-12 project groups

  > cat calendar-src.txt | caug
    2025-03-01 w09 09:00-12:00 project groups +tomorrow 
    +thisweek

  > cat calendar-src.txt | caug | grep "thisweek"
    2025-03-01 w09 09:00-12:00 project groups +tomorrow 
    +thisweek