#!/bin/sed -f
s/\t/ /g
# skip over irregular lines
/^[0-9]\+ [0-2][0-9]:[0-5][0-9]:[0-5][0-9] [a-zA-Z]\+ [a-zA-Z]\+:/!d
# remove the timestamp and the IP
s/^\(PREV: \|OLD: \|\)[0-9]\+ [0-2][0-9]:[0-5][0-9]:[0-5][0-9] [a-zA-Z]\+ [a-zA-Z]\+: [0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+ /\1/
s/ info server://
s/""/"/g
/^<[a-zA-Z0-9_-]\+ .*>$\|^<[a-zA-Z0-9_-]\+>\|^[0-9]\+ [0-2][0-9]:[0-5][0-9]:[0-5][0-9] \(<server>\|Statistics:\) \|^[a-zA-Z0-9_-]\+ \(\(started\( reloaded\|\)\|advanced\|ended\) game: \|ended game: .* and disconnected.\)/!d