ipkg_is_upgrade () {
local A B a b
- A=$(echo $1 | sed -r "s/([0-9]+)[^A-Za-z]?/ \1 /g").
- B=$(echo $2 | sed -r "s/([0-9]+)[^A-Za-z]?/ \1 /g").
+ A=$(echo $1 | sed -r "s/([0-9]+)[^[:alnum:]]*/ \1 /g").
+ B=$(echo $2 | sed -r "s/([0-9]+)[^[:alnum:]]*/ \1 /g").
while [ \! -z "$A" ] && [ \! -z "$B" ]; do {
set $A; a=$1; shift; A=$*
set $B; b=$1; shift; B=$*