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clean-diff 324 B
#!/bin/sh
sed '/^+[^+]/!s/	/TaBBaT/g' |\
 expand -t `seq -s , 9 8 200` |\
 sed 's/TaBBaT/	/g' |\
 sed '/^+[^+]/s/ * $//' |\
 tr -d '\015' |\
 tr '\n' '' |\
 sed 's/\(@@[^@]*@@[^@]*\)/\n\1/g' |\
 egrep -v '@@[^@]*@@(( [^]*)|([+-][[:space:]]*)|(-[[:space:]]*([^]*)\+[[:space:]]*\5))*$' |\
 tr -d '\n' |\
 tr '' '\n'