From ea2a3600f1b8b432c2a1f3adaf873982e9fa489b Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Fri, 19 Jan 2024 18:07:43 -0800
Subject: Improve initialization.

* cdlog.sh (toplevel): Ensure that c1 exists, so that the
init code doesn't access a nonexistent c1. Condense
the assignments in the init block.
---
 cdlog.sh | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/cdlog.sh b/cdlog.sh
index 911c606..75b1e01 100644
--- a/cdlog.sh
+++ b/cdlog.sh
@@ -1,15 +1,13 @@
 # License at bottom.
 
 # Initialize cdlog the first time.
+
+c1=${c1-}
+
 if [ -z "$c1" ] ; then
-  c9=
-  c8=
-  c7=
-  c6=
-  c5=
-  c4=
-  c3=
-  c2=
+  c9=; c8=; c7=
+  c6=; c5=; c4=
+  c3=; c2=
 fi
 
 # One-letter nicknames for most recent four dirs.
-- 
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