portable sed usage

[confetti] / courses / list.sh

diff --git a/courses/list.sh b/courses/list.sh
index d8d3bf7ca51d45bdf706b71af40b3cb1402ca48e..e9ae7bca263506c1a71f4f3b9c0a72cc0d526ee2 100755 (executable)
--- a/courses/list.sh
+++ b/courses/list.sh
@@ -81,7 +81,7 @@ course_mail() {
     cat "${_DATA}/vcard/${card}"
   done \
   | pdi_load - \
-  | sed -rn 's;^EMAIL(\;[^:]*)*:(.+)\r?$;\2,;p' \
+  | sed -nE 's;^EMAIL(\;[^:]*)*:(.+)\r?$;\2,;p' \
   | tr -d \\n \
   | unescape
 }