Hi Jay, I'm sorry for the long delay in writing back -- I was travelling and let my email get away from me. I'm doing something kind of similar but not exactly the same. My problem is a little bit easier -- my dates aleays change by exactly a week, so what I have done is to retain the first date and just iteratively insert timestamps as i go. So I've written this defun:
(defun get-ts+7 () (interactive) (let ((base-date (save-excursion (re-search-backward (org-re-timestamp 'all)) (match-string 0))) (result nil)) (format-time-string "<%Y-%m-%d %a>" (time-add (date-to-time base-date) (days-to-time (1+ 7)))) )) Then I have an org file like: #+MACRO: ts (eval (get-ts+7)) * Week {{{n}}} <2017-09-17 Tue> * Week {{{n}}} {{{ts}}} * Week {{{n}}} {{{ts}}} * Week {{{n}}} {{{ts}}} You could modify my defun to take a parameter, maybe something like this: (defun get-ts+7 (plusdays) (interactive) (let ((base-date "<2017-09-17>") (result nil)) (format-time-string "<%Y-%m-%d %a>" (time-add (date-to-time base-date) (days-to-time (1+ plusdays)))) )) But then you'd need to eval the defun every time. So maybe something like this: #+MACRO: ts (eval (let ((base-date "<2017-09-17>")(result nil)) (format-time-string "<%Y-%m-%d %a>"(time-add (date-to-time base-date) (days-to-time (1+ plusdays)))) )) You'd have to customize the base-date value every time but maybe the above would work otherwise. I think macro definitions have to be one-liners, butm aybe not... On Sun, Aug 27, 2017 at 12:32 PM, Jay Iyer <jayiye...@gmail.com> wrote: > Hi Matt, > I was wondering what is your usage of the date macro question you posted > here: http://lists.gnu.org/archive/html/emacs-orgmode/ > 2017-08/msg00605.html > > What I am trying to do is set a base date in a document and then use a > macro to define incremental dates such as "base date + n days" as the > document develops and I am wondering whether your macro would help me with > this. > > Please let me know your thoughts. > > Thanks, Matt. > -jay > > >