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linux/Documentation/lguest/extract
Rusty Russell f938d2c892 lguest: documentation I: Preparation
The netfilter code had very good documentation: the Netfilter Hacking HOWTO.
Noone ever read it.

So this time I'm trying something different, using a bit of Knuthiness.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-26 11:35:16 -07:00

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#! /bin/sh
set -e
PREFIX=$1
shift
trap 'rm -r $TMPDIR' 0
TMPDIR=`mktemp -d`
exec 3>/dev/null
for f; do
while IFS="
" read -r LINE; do
case "$LINE" in
*$PREFIX:[0-9]*:\**)
NUM=`echo "$LINE" | sed "s/.*$PREFIX:\([0-9]*\).*/\1/"`
if [ -f $TMPDIR/$NUM ]; then
echo "$TMPDIR/$NUM already exits prior to $f"
exit 1
fi
exec 3>>$TMPDIR/$NUM
echo $f | sed 's,\.\./,,g' > $TMPDIR/.$NUM
/bin/echo "$LINE" | sed -e "s/$PREFIX:[0-9]*//" -e "s/:\*/*/" >&3
;;
*$PREFIX:[0-9]*)
NUM=`echo "$LINE" | sed "s/.*$PREFIX:\([0-9]*\).*/\1/"`
if [ -f $TMPDIR/$NUM ]; then
echo "$TMPDIR/$NUM already exits prior to $f"
exit 1
fi
exec 3>>$TMPDIR/$NUM
echo $f | sed 's,\.\./,,g' > $TMPDIR/.$NUM
/bin/echo "$LINE" | sed "s/$PREFIX:[0-9]*//" >&3
;;
*:\**)
/bin/echo "$LINE" | sed -e "s/:\*/*/" -e "s,/\*\*/,," >&3
echo >&3
exec 3>/dev/null
;;
*)
/bin/echo "$LINE" >&3
;;
esac
done < $f
echo >&3
exec 3>/dev/null
done
LASTFILE=""
for f in $TMPDIR/*; do
if [ "$LASTFILE" != $(cat $TMPDIR/.$(basename $f) ) ]; then
LASTFILE=$(cat $TMPDIR/.$(basename $f) )
echo "[ $LASTFILE ]"
fi
cat $f
done