diff options
Diffstat (limited to 'dump/utils.scm')
| -rw-r--r-- | dump/utils.scm | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/dump/utils.scm b/dump/utils.scm index d033f17..8544eec 100644 --- a/dump/utils.scm +++ b/dump/utils.scm @@ -1,11 +1,27 @@ (define-module (dump utils) #:use-module (srfi srfi-1) + #:use-module (srfi srfi-19) #:use-module (srfi srfi-26) #:use-module (ice-9 match) #:export (string-blank? translate-forms collect-forms - map-alist)) + map-alist + time-unix->string)) + + +(define (time-unix->string seconds . maybe-format) + "Given an integer saying the number of seconds since the Unix +epoch (1970-01-01 00:00:00), SECONDS, format it as a human readable +date and time-string, possible using the MAYBE-FORMAT." + (letrec ([time-unix->time-utc + (lambda (seconds) + (add-duration + (date->time-utc (make-date 0 0 0 0 1 1 1970 0)) + (make-time time-duration 0 seconds)))]) + (apply date->string + (time-utc->date (time-unix->time-utc seconds)) + maybe-format))) (define (string-blank? str) "Return non-#f if STR consists only of whitespace characters." |