#!./perl

# $Header: op.subst,v 2.0 88/06/05 00:14:49 root Exp $

print "1..13\n";

$x = 'foo';
$_ = "x";
s/x/\$x/;
print "#1\t:$_: eq :\$x:\n";
if ($_ eq '$x') {print "ok 1\n";} else {print "not ok 1\n";}

$_ = "x";
s/x/$x/;
print "#2\t:$_: eq :foo:\n";
if ($_ eq 'foo') {print "ok 2\n";} else {print "not ok 2\n";}

$_ = "x";
s/x/\$x $x/;
print "#3\t:$_: eq :\$x foo:\n";
if ($_ eq '$x foo') {print "ok 3\n";} else {print "not ok 3\n";}

$b = 'cd';
($a = 'abcdef') =~ s'(b${b}e)'\n$1';
print "#4\t:$1: eq :bcde:\n";
print "#4\t:$a: eq :a\\n\$1f:\n";
if ($1 eq 'bcde' && $a eq 'a\n$1f') {print "ok 4\n";} else {print "not ok 4\n";}

$a = 'abacada';
if (($a =~ s/a/x/g) == 4 && $a eq 'xbxcxdx')
    {print "ok 5\n";} else {print "not ok 5\n";}

if (($a =~ s/a/y/g) == 0 && $a eq 'xbxcxdx')
    {print "ok 6\n";} else {print "not ok 6\n";}

if (($a =~ s/b/y/g) == 1 && $a eq 'xyxcxdx')
    {print "ok 7\n";} else {print "not ok 7 $a\n";}

$_ = 'ABACADA';
if (/a/i && s///gi && $_ eq 'BCD') {print "ok 8\n";} else {print "not ok 8\n";}

$_ = '\\' x 4;
if (length($_) == 4) {print "ok 9\n";} else {print "not ok 9\n";}
s/\\/\\\\/g;
if ($_ eq '\\' x 8) {print "ok 10\n";} else {print "not ok 10\n";}

$_ = '\/' x 4;
if (length($_) == 8) {print "ok 11\n";} else {print "not ok 11\n";}
s/\//\/\//g;
if ($_ eq '\\//' x 4) {print "ok 12\n";} else {print "not ok 12\n";}
if (length($_) == 12) {print "ok 13\n";} else {print "not ok 13\n";}