-;;; time printing routines built upon the Common Lisp FORMAT function
+;;;; time printing routines built upon the Common Lisp FORMAT function
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
(in-package "SB!EXT")
-(defconstant abbrev-weekday-table
- '#("Mon" "Tue" "Wed" "Thu" "Fri" "Sat" "Sun"))
+(defparameter *abbrev-weekday-table*
+ #("Mon" "Tue" "Wed" "Thu" "Fri" "Sat" "Sun"))
-(defconstant long-weekday-table
- '#("Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday"
- "Sunday"))
+(defparameter *long-weekday-table*
+ #("Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday" "Sunday"))
-(defconstant abbrev-month-table
- '#("Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov"
- "Dec"))
+(defparameter *abbrev-month-table*
+ #("Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"))
-(defconstant long-month-table
- '#("January" "February" "March" "April" "May" "June" "July" "August"
- "September" "October" "November" "December"))
+(defparameter *long-month-table*
+ #("January" "February" "March" "April" "May" "June" "July" "August"
+ "September" "October" "November" "December"))
-;;; The timezone-table is incomplete but workable.
+;;; The timezone table is incomplete but workable.
+(defparameter *timezone-table*
+ #("GMT" "" "" "" "" "EST" "CST" "MST" "PST"))
-(defconstant timezone-table
- '#("GMT" "" "" "" "" "EST" "CST" "MST" "PST"))
-
-(defconstant daylight-table
- '#(nil nil nil nil nil "EDT" "CDT" "MDT" "PDT"))
-
-;;; Valid-Destination-P ensures the destination stream is okay
-;;; for the Format function.
+(defparameter *daylight-table*
+ #(nil nil nil nil nil "EDT" "CDT" "MDT" "PDT"))
+;;; VALID-DESTINATION-P ensures the destination stream is okay for the
+;;; FORMAT function.
(defun valid-destination-p (destination)
(or (not destination)
(eq destination 't)
(and (stringp destination)
(array-has-fill-pointer-p destination))))
-;;; Format-Universal-Time - External.
-
;;; CMU CL made the default style :SHORT here. I've changed that to :LONG, on
;;; the theory that since the 8/7/1999 style is hard to decode unambiguously,
;;; you should have to ask for it explicitly. (I prefer YYYYMMDD myself, since
;;; 8601 formats (like e.g. :iso-8601 and :iso-8601-short) and migrate
;;; slowly towards ISO dates in the user code...
;;; The :ISO-8601 and :ISO-8601-SHORT options sound sensible to me. Maybe
-;;; someone will do them for CMU CL and we can steal them here.
+;;; someone will do them for CMU CL and we can steal them for SBCL.
(defun format-universal-time (destination universal-time
&key
(timezone nil)
destination which can be accepted by the Format function. The
timezone keyword is an integer specifying hours west of Greenwich.
The style keyword can be :SHORT (numeric date), :LONG (months and
- weekdays expressed as words), :ABBREVIATED (like :long but words are
+ weekdays expressed as words), :ABBREVIATED (like :LONG but words are
abbreviated), or :GOVERNMENT (of the form \"XX Month XXXX XX:XX:XX\")
The keyword argument DATE-FIRST, if nil, will print the time first instead
of the date (the default). The PRINT- keywords, if nil, inhibit
(let ((time-string "~2,'0D:~2,'0D")
(date-string
(case style
- (:short "~D/~D/~D") ;; MM/DD/Y
- ((:abbreviated :long) "~A ~D, ~D") ;; Month DD, Y
- (:government "~2,'0D ~:@(~A~) ~D") ;; DD MON Y
+ (:short "~D/~D/~D") ;; MM/DD/Y
+ ((:abbreviated :long) "~A ~D, ~D") ;; Month DD, Y
+ (:government "~2,'0D ~:@(~A~) ~D") ;; DD MON Y
(t
(error "~A: Unrecognized :style keyword value." style))))
(time-args
(:short
(list month day year))
(:abbreviated
- (list (svref abbrev-month-table (1- month)) day year))
+ (list (svref *abbrev-month-table* (1- month)) day year))
(:long
- (list (svref long-month-table (1- month)) day year))
+ (list (svref *long-month-table* (1- month)) day year))
(:government
- (list day (svref abbrev-month-table (1- month))
+ (list day (svref *abbrev-month-table* (1- month))
year)))))
(declare (simple-string time-string date-string))
(when print-weekday
(push (case style
- ((:short :long) (svref long-weekday-table dow))
- (:abbreviated (svref abbrev-weekday-table dow))
- (:government (svref abbrev-weekday-table dow)))
+ ((:short :long) (svref *long-weekday-table* dow))
+ (:abbreviated (svref *abbrev-weekday-table* dow))
+ (:government (svref *abbrev-weekday-table* dow)))
date-args)
(setq date-string
(concatenate 'simple-string "~A, " date-string)))
(if (and (integerp tz)
(or (and dst (= tz 0))
(<= 5 tz 8)))
- (svref (if dst daylight-table timezone-table) tz)
+ (svref (if dst *daylight-table* *timezone-table*) tz)
(multiple-value-bind (rest seconds) (truncate (* tz 60 60) 60)
(multiple-value-bind (hours minutes) (truncate rest 60)
(format nil "[~C~D~@[~*:~2,'0D~@[~*:~2,'0D~]~]]"
(not (zerop seconds))
(abs seconds))))))
-;;; Format-Decoded-Time - External.
(defun format-decoded-time (destination seconds minutes hours
day month year
&key (timezone nil)
(print-timezone t)
(print-weekday t))
#!+sb-doc
- "Format-Decoded-Time formats a string containing decoded-time
+ "FORMAT-DECODED-TIME formats a string containing decoded time
expressed in a humanly-readable manner. The destination is any
- destination which can be accepted by the Format function. The
+ destination which can be accepted by the FORMAT function. The
timezone keyword is an integer specifying hours west of Greenwich.
- The style keyword can be :short (numeric date), :long (months and
- weekdays expressed as words), or :abbreviated (like :long but words are
- abbreviated). The keyword date-first, if nil, will cause the time
- to be printed first instead of the date (the default). The print-
+ The style keyword can be :SHORT (numeric date), :LONG (months and
+ weekdays expressed as words), or :ABBREVIATED (like :LONG but words are
+ abbreviated). The keyword DATE-FIRST, if NIL, will cause the time
+ to be printed first instead of the date (the default). The PRINT-
keywords, if nil, inhibit the printing of certain semi-obvious
parts of the string."
(unless (valid-destination-p destination)
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