Function: calendar-mark-days-named

calendar-mark-days-named is a byte-compiled function defined in diary-lib.el.gz.

Signature

(calendar-mark-days-named DAYNAME &optional COLOR)

Documentation

Mark all dates in the calendar window that are day DAYNAME of the week.

0 means all Sundays, 1 means all Mondays, and so on.
Optional argument COLOR is passed to calendar-mark-visible-date as MARK.

Source Code

;; Defined in /usr/src/emacs/lisp/calendar/diary-lib.el.gz
(defun calendar-mark-days-named (dayname &optional color)
  "Mark all dates in the calendar window that are day DAYNAME of the week.
0 means all Sundays, 1 means all Mondays, and so on.
Optional argument COLOR is passed to `calendar-mark-visible-date' as MARK."
  (with-current-buffer calendar-buffer
    (let ((prev-month displayed-month)
          (prev-year displayed-year)
          (succ-month displayed-month)
          (succ-year displayed-year)
          (last-day)
          (day))
      (calendar-increment-month succ-month succ-year 1)
      (calendar-increment-month prev-month prev-year -1)
      (setq day (calendar-absolute-from-gregorian
                 (calendar-nth-named-day 1 dayname prev-month prev-year))
            last-day (calendar-absolute-from-gregorian
                      (calendar-nth-named-day -1 dayname succ-month succ-year)))
      (while (<= day last-day)
        (calendar-mark-visible-date (calendar-gregorian-from-absolute day)
                                    color)
        (setq day (+ day 7))))))