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#!./perl
# $Header: eval.t,v 4.0 91/03/20 01:52:20 lwall Locked $
print "1..10\n";
eval 'print "ok 1\n";';
if ($@ eq '') {print "ok 2\n";} else {print "not ok 2\n";}
eval "\$foo\n = # this is a comment\n'ok 3';";
print $foo,"\n";
eval "\$foo\n = # this is a comment\n'ok 4\n';";
print $foo;
print eval '
$foo ='; # this tests for a call through yyerror()
if ($@ =~ /line 2/) {print "ok 5\n";} else {print "not ok 5\n";}
print eval '$foo = /'; # this tests for a call through fatal()
if ($@ =~ /Search/) {print "ok 6\n";} else {print "not ok 6\n";}
print eval '"ok 7\n";';
# calculate a factorial with recursive evals
$foo = 5;
$fact = 'if ($foo <= 1) {1;} else {push(@x,$foo--); (eval $fact) * pop(@x);}';
$ans = eval $fact;
if ($ans == 120) {print "ok 8\n";} else {print "not ok 8\n";}
$foo = 5;
$fact = 'local($foo)=$foo; $foo <= 1 ? 1 : $foo-- * (eval $fact);';
$ans = eval $fact;
if ($ans == 120) {print "ok 9\n";} else {print "not ok 9 $ans\n";}
open(try,'>Op.eval');
print try 'print "ok 10\n"; unlink "Op.eval";',"\n";
close try;
do 'Op.eval'; print $@;
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