1 files changed, 107 insertions, 0 deletions
diff --git a/lib/Text/Balanced/t/xvari.t b/lib/Text/Balanced/t/xvari.t
new file mode 100644
index 0000000000..dd35b9c032
--- /dev/null
+++ b/lib/Text/Balanced/t/xvari.t
@@ -0,0 +1,107 @@
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+# Before `make install' is performed this script should be runnable with
+# `make test'. After `make install' it should work as `perl test.pl'
+
+######################### We start with some black magic to print on failure.
+
+# Change 1..1 below to 1..last_test_to_print .
+# (It may become useful if the test is moved to ./t subdirectory.)
+
+BEGIN { $| = 1; print "1..81\n"; }
+END {print "not ok 1\n" unless $loaded;}
+use Text::Balanced qw ( extract_variable );
+$loaded = 1;
+print "ok 1\n";
+$count=2;
+use vars qw( $DEBUG );
+sub debug { print "\t>>>",@_ if $DEBUG }
+
+######################### End of black magic.
+
+
+$cmd = "print";
+$neg = 0;
+while (defined($str = <DATA>))
+{
+	chomp $str;
+	if ($str =~ s/\A# USING://) { $neg = 0; $cmd = $str; next; }
+	elsif ($str =~ /\A# TH[EI]SE? SHOULD FAIL/) { $neg = 1; next; }
+	elsif (!$str || $str =~ /\A#/) { $neg = 0; next }
+	$str =~ s/\\n/\n/g;
+	debug "\tUsing: $cmd\n";
+	debug "\t   on: [$str]\n";
+
+	my @res;
+	$var = eval "\@res = $cmd";
+	debug "\t list got: [" . join("|",@res) . "]\n";
+	debug "\t list left: [$str]\n";
+	print "not " if (substr($str,pos($str)||0,1) eq ';')==$neg;
+	print "ok ", $count++;
+	print " ($@)" if $@ && $DEBUG;
+	print "\n";
+
+	pos $str = 0;
+	$var = eval $cmd;
+	$var = "<undef>" unless defined $var;
+	debug "\t scalar got: [$var]\n";
+	debug "\t scalar left: [$str]\n";
+	print "not " if ($str =~ '\A;')==$neg;
+	print "ok ", $count++;
+	print " ($@)" if $@ && $DEBUG;
+	print "\n";
+}
+
+__DATA__
+
+# USING: extract_variable($str);
+# THESE SHOULD FAIL
+$a->;
+$a (1..3) { print $a };
+
+# USING: extract_variable($str);
+*var;
+*$var;
+*{var};
+*{$var};
+*var{cat};
+\&var;
+\&mod::var;
+\&mod'var;
+$a;
+$_;
+$a[1];
+$_[1];
+$a{cat};
+$_{cat};
+$a->[1];
+$a->{"cat"}[1];
+@$listref;
+@{$listref};
+$obj->nextval;
+$obj->_nextval;
+$obj->next_val_;
+@{$obj->nextval};
+@{$obj->nextval($cat,$dog)->{new}};
+@{$obj->nextval($cat?$dog:$fish)->{new}};
+@{$obj->nextval(cat()?$dog:$fish)->{new}};
+$ a {'cat'};
+$a::b::c{d}->{$e->()};
+$a'b'c'd{e}->{$e->()};
+$a'b::c'd{e}->{$e->()};
+$#_;
+$#array;
+$#{array};
+$var[$#var];
+
+# THESE SHOULD FAIL
+$a->;
+@{$;
+$ a :: b :: c
+$ a ' b ' c
+
+# USING: extract_variable($str,'=*');
+========$a;