#!/bin/zsh
# print bz2 debug info for given file in roundabout fashion

file=$1
ftmp="/tmp/$$.tmp"
otmp="/tmp/$$.o.tmp"

if [ ! -n "$1" ]; then
  echo "scan <file>" >/dev/stdout
  exit -1
fi

if [ -n "$2" ]; then
  arg=$2
else
  arg="2>/dev/null"
fi

../c/bzipreader -f $file -l > $ftmp

I=-1; while [ $((I++)) -lt 10 ];      
do
  offset=`cat $ftmp | grep -E "^$I" | awk '{print $2;}'`
  echo -n "$I\t$offset\t"
  eval "../c/bzipreader -f $file -n $I -x $arg > $otmp"
  cat $otmp | head | tr "\n" "\\" | head -c 30
  echo "" `cat $otmp | wc -c`
done