+
+ # `less` as $PAGER without e.g. `|lesspipe %s` inside $LESSOPEN can't properly
+ # read *.gz files, try to detect this to use vi instead iff available
+ local viewer
+
+ if [[ ${$(typeset -p PAGER)[2]} = -a ]] ; then
+ viewer=($PAGER) # support PAGER=(less -Mr) but leave array untouched
+ else
+ viewer=(${=PAGER}) # support PAGER='less -Mr'
+ fi
+
+ if [[ ${viewer[1]:t} = less ]] && [[ -z "${LESSOPEN}" ]] && check_com vi ; then
+ viewer='vi'
+ fi
+