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-rw-r--r--module/output/html.scm14
1 files changed, 7 insertions, 7 deletions
diff --git a/module/output/html.scm b/module/output/html.scm
index f72122bb..a26f05e6 100644
--- a/module/output/html.scm
+++ b/module/output/html.scm
@@ -32,13 +32,13 @@
(let inner ((x 0)
(tree (make-tree overlapping?
(sort* lst time>? (lambda (e) (event-length/day e start-of-day))))))
- (if (null? tree) #f
- (let ((w (/ (- 1 x)
- (+ 1 (length-of-longst-branch (left-subtree tree))))))
- (set! (width (car tree)) w
- (x-pos (car tree)) x)
- (inner (+ x w) (left-subtree tree))
- (inner x (right-subtree tree))))))
+ (unless (null? tree)
+ (let ((w (/ (- 1 x)
+ (+ 1 (length-of-longst-branch (left-subtree tree))))))
+ (set! (width (car tree)) w
+ (x-pos (car tree)) x)
+ (inner (+ x w) (left-subtree tree))
+ (inner x (right-subtree tree))))))
;; This should only be used on time intervals, never on absolute times.
;; For that see @var{date->decimal-hour}.