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#!/usr/bin/guile \
-s
!#
(add-to-load-path (dirname (current-filename)))
(use-modules (srfi srfi-19)
(srfi srfi-26)
(vcalendar))
(define path
(if (null? (cdr (command-line)))
"testcal/d1-b.ics"
(cadr (command-line))))
(define cal (make-vcomponent path))
;;; Parse all start times into scheme date objects.
(for-each (cut transform-attr! <> "DTSTART"
(cut string->date <> "~Y~m~dT~H~M~S"))
(children cal))
;;; Sort the events, and print a simple agenda.
(let ((sorted-events
(sort (children cal)
(lambda (a b)
(time<? (date->time-utc (get-attr a "DTSTART"))
(date->time-utc (get-attr b "DTSTART")))))))
(for-each (lambda (ev) (format #t "~a | ~a~%"
(date->string (get-attr ev "DTSTART") "~1 ~H:~M")
(get-attr ev "SUMMARY")))
sorted-events))
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