| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: durationspec &key start end
Returns the duration
denoted by
durationspec. durationspec
should be a duration specifyier. start and
end are bounding index designators of
durationspec. The defaults for
start and end are 0 and
nil
, respectively.
Note the difference between a duration
designator and a time-interval
designator of a duration. A time-interval designator specifies that a
duration begin with the character #\P, as, for example, in "P1Y2MT5H".
The corresponding duration designator does not include the initial #\P
and would be "1Y2MT5H".
(require :datetime) (use-package :util.date-time) (duration-years (duration "2Y10M15DT10H30M20S")) => 2 (duration-months (duration "00021015T103020")) => 10
See also duration-years, duration-months, duration-weeks, duration-days, duration-hours, duration-minutes, duration-seconds, time-interval, add-duration, subtract-duration.
See date-time.htm for information on support in Allegro CL for parsing and generating time expressions using the ISO 8601 standard.
Copyright (c) 1998-2016, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.1 page.
Created 2010.1.21.
| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |