% Teaching calendar for \VAR{period} \VAR{year}.
\BLOCK{for week, date in data.items()}
\BLOCK{set eow = date|eow(end_of_week)}
\newcommand{
    \BLOCK{- if date|isteaching -}
        \VAR{period_name}Week\VAR{week|num2words}
    \BLOCK{- elif date|isbreak -}
        \VAR{period_name}Break
    \BLOCK{- else -}
        WTF
    \BLOCK{- endif -}
}{
    \BLOCK{- if date.month == eow.month -}
        \VAR{date.strftime("%d")}--\VAR{eow.strftime("%d")} \\ \VAR{date.strftime("%b")}
    \BLOCK{- else -}
        \VAR{date.strftime("%d %b")} \\ --\VAR{eow.strftime("%d %b")}
    \BLOCK{- endif -}
}
\BLOCK{endfor}