This is dateseq, a utility to generate sequences of dates.
Use stack install as usual. The executable will be named dateseq.
There are three arguments: a start date, an end date, and an optional
set of days of the week, introduced by the -d or -dows flag.
To only consider Monday, Wednesday, and Friday, use -d MWF.
Saturday is A, and Thursday is R in this scheme.
The dates (for now) use YYYY-MM-DD format.
All the Thursdays in December 2019:
% dateseq 2019-12-01 2019-12-31 -d R
2019-12-05
2019-12-12
2019-12-19
2019-12-26All the Thursdays in December