use $upcase constant only in its function

[confetti] / cards / list.sh

diff --git a/cards/list.sh b/cards/list.sh
index 6e78def7ae2856ee915bcdbcdb67d02cb3b7ee1b..519005c08f780bc5e09dc64717fa72bd46425482 100755 (executable)
--- a/cards/list.sh
+++ b/cards/list.sh
@@ -148,6 +148,7 @@ filter_attendance(){
 
 filter_cards(){
   local filter f fex='x;p;'
+  local upcase=' y;abcdefghijklmnopqrstuvwxyzäöüé;ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÜÉ;; '
 
   filter="$(printf %s "${filter}" \
             | sed -E 's;[]\/\(\)\\\$\?\.\+\*\;\[\{\}];\\&;g;