On *:TEXT:?: { 
  if (%log = on) { 
    .write log.txt 4$asctime(HH:nn TT) 3$nick $+ : 2$1
    .msg $nick Sorry I'm away anything you say is being logged so I will reply later
  }
}
alias read {
  echo -a play log.txt
}
alias a {
  /nick %mynick $+ ` $+ $1
  %log = on
}
alias b {
  /nick %mynick
  /%log = off
}