X-Git-Url: http://git.kpe.io/?p=kmrcl.git;a=blobdiff_plain;f=datetime.lisp;h=52d45b2a43b044e6919f77778fd6f9d4f7218296;hp=4a4dbe2e321feae2789864b0d657c82759a9a1c6;hb=e4718cf4751ba0ca9029e30f40b28d17305ed7c3;hpb=98d7b650aa611a0de537ace581cde47c66071af3 diff --git a/datetime.lisp b/datetime.lisp index 4a4dbe2..52d45b2 100644 --- a/datetime.lisp +++ b/datetime.lisp @@ -68,6 +68,37 @@ (t (format t "~,2F ~A" val unit)))) +(defconstant +posix-epoch+ + (encode-universal-time 0 0 0 1 1 1970 0)) + +(defun posix-time-to-utime (time) + (+ time +posix-epoch+)) + +;; Monthnames taken from net-telent-date to support lml2 + +(defvar *monthnames* + '((1 . "January") + (2 . "February") + (3 . "March") + (4 . "April") + (5 . "May") + (6 . "June") + (7 . "July") + (8 . "August") + (9 . "September") + (10 . "October") + (11 . "November") + (12 . "December"))) + +(defun monthname (stream arg colon-p at-p &optional width (mincol 0) (colinc 1) (minpad 0) (padchar #\Space)) + "Print the name of the month (1=January) corresponding to ARG on STREAM. This is intended for embedding in a FORMAT directive: WIDTH governs the number of characters of text printed, MINCOL, COLINC, MINPAD, PADCHAR work as for ~A" + (let ((monthstring (cdr (assoc arg *monthnames*)))) + (if (not monthstring) (return-from monthname nil)) + (let ((truncate (if width (min width (length monthstring)) nil))) + (format stream + (if at-p "~V,V,V,V@A" "~V,V,V,VA") + mincol colinc minpad padchar + (subseq monthstring 0 truncate))))) ;;;; Daylight Saving Time calculations @@ -101,3 +132,4 @@ ;; 2007 April 1 October 28 March 25 October 28 ;; 2008 April 6 October 26 March 30 October 26 +