#!/bin/rc
#
# command: /bin/boddle /n/juke/plan_9/sys/src/cmd/8c/cgen.c /sys/src/cmd/8c/cgen.c
# srcdir: /n/juke/plan_9/sys/src/cmd/8c
# version: 816042167
# date: Fri Nov 10 17:22:47 EST 1995
#
myname=$0
doextract=no

fn usage{
	echo $myname: usage: $myname '[-X] [src-directory]' >[1=2]
	exit usage
}

fn sigint{
	rm -rf 816042167
	exit interrupt
}

while(~ $1 -*){
	switch($1){
	case -X
		doextract=yes
	case -*
		usage
	}
	shift
}

switch($#*){
case 0
	srcdir=/sys/src/cmd/8c
case 1
	srcdir=$1
case *
	usage
}

if(! ~ $doextract yes){
	echo This shell file contains a bundle of diffs representing changes
	echo to original source files in the Plan 9 distribution. It will run
	echo against the files in
	echo ' ' $srcdir
	echo '(unless overridden by the optional source directory argument)'
	echo and create a directory 816042167 containing the updated files.
	echo It will NOT automatically update the original files.
	echo
	echo Invoke with argument -X to perform the actual extraction.
	exit 0
}

rm -rf 816042167
mkdir 816042167

target=816042167/cgen.c
echo -n '816042167/cgen.c: '
if(! test -f $srcdir/cgen.c || ! test -r $srcdir/cgen.c){
	echo $srcdir/cgen.c unreadable
	exit unreadable
}
sum=`{sum < $srcdir/cgen.c}
if(! ~ adfe69fb24692  $sum(1)^$sum(2)){
	echo $srcdir/cgen.c is not the original distribution file
	exit original
}
cp $srcdir/cgen.c 816042167/cgen.c
ed 816042167/cgen.c >/dev/null >[2=1] <<'//GO.SYSIN DD VADIM cgen.c'
28,30d
23,24c
		if(nn == Z) {
			if(o == OINDEX)
				nullwarn(l, r);
			return;
		}
		gmove(n, nn);
.
21a
	l = n->left;
	r = n->right;
	o = n->op;
.
wq
//GO.SYSIN DD VADIM cgen.c
sum=`{sum < 816042167/cgen.c}
if(~ db5b691e24747  $sum(1)^$sum(2))
	echo
if not{
	echo 816042167/cgen.c checksum error creating updated file
	exit checksum
}