<boily> echo -e "#!/usr/bin/env python\\n# -*- encoding: utf-8 -*-\\nimport sys\\nimport unicodedata\\ntry:\\n print u\'\'.join(map(unicodedata.lookup, sys.argv[1:])).encode(\'utf-8\')\\nexcept KeyError:\\n print u\'\xc3\x9a\xc5\x84\xe1\xb8\xb1\xc5\x84\xc3\xb3\xe1\xba\x83\xc5\x84 \xc4\x87h\xcc\x81\xc3\xa1\xc5\x95\xc3\xa1\xc4\x87t\xcc\x81\xc3\xa9\xc5\x95.\'" >bin/unicode

#!/bin/sh
count () {
    hg log --template '{desc}\n' |
    egrep '<[^]]*> karma\'$1 |
    fgrep -vix "<$2> karma$1 $2" |
    cut -d' ' -f3 |
    fgrep -cix "$2"
}
plus=$(count + "$1")
minus=$(count - "$1")
echo $(($plus-$minus))