1# Before `make install' is performed this script should be runnable with
2# `make test'. After `make install' it should work as `perl test.pl'
3
4######################### We start with some black magic to print on failure.
5
6# Change 1..1 below to 1..last_test_to_print .
7# (It may become useful if the test is moved to ./t subdirectory.)
8
9BEGIN { $| = 1; print "1..19\n"; }
10END {print "not ok 1\n" unless $loaded;}
11use Text::Balanced qw ( extract_bracketed );
12$loaded = 1;
13print "ok 1\n";
14$count=2;
15use vars qw( $DEBUG );
16sub debug { print "\t>>>",@_ if $DEBUG }
17
18######################### End of black magic.
19
20
21$cmd = "print";
22$neg = 0;
23while (defined($str = <DATA>))
24{
25	chomp $str;
26	if ($str =~ s/\A# USING://) { $neg = 0; $cmd = $str; next; }
27	elsif ($str =~ /\A# TH[EI]SE? SHOULD FAIL/) { $neg = 1; next; }
28	elsif (!$str || $str =~ /\A#/) { $neg = 0; next }
29	$str =~ s/\\n/\n/g;
30	debug "\tUsing: $cmd\n";
31	debug "\t   on: [$str]\n";
32
33	$var = eval "() = $cmd";
34	debug "\t list got: [$var]\n";
35	debug "\t list left: [$str]\n";
36	print "not " if (substr($str,pos($str),1) eq ';')==$neg;
37	print "ok ", $count++;
38	print " ($@)" if $@ && $DEBUG;
39	print "\n";
40
41	pos $str = 0;
42	$var = eval $cmd;
43	$var = "<undef>" unless defined $var;
44	debug "\t scalar got: [$var]\n";
45	debug "\t scalar left: [$str]\n";
46	print "not " if ($str =~ '\A;')==$neg;
47	print "ok ", $count++;
48	print " ($@)" if $@ && $DEBUG;
49	print "\n";
50}
51
52__DATA__
53
54# USING: extract_bracketed($str);
55{a nested { and } are okay as are () and <> pairs and escaped \}'s };
56{a nested\n{ and } are okay as are\n() and <> pairs and escaped \}'s };
57
58# USING: extract_bracketed($str,'{}');
59{a nested { and } are okay as are unbalanced ( and < pairs and escaped \}'s };
60
61# THESE SHOULD FAIL
62{an unmatched nested { isn't okay, nor are ( and < };
63{an unbalanced nested [ even with } and ] to match them;
64
65
66# USING: extract_bracketed($str,'<"`q>');
67<a q{uoted} ">" unbalanced right bracket of /(q>)/ either sort (`>>>""">>>>`) is okay >;
68
69# USING: extract_bracketed($str,'<">');
70<a quoted ">" unbalanced right bracket is okay >;
71
72# USING: extract_bracketed($str,'<"`>');
73<a quoted ">" unbalanced right bracket of either sort (`>>>""">>>>`) is okay >;
74
75# THIS SHOULD FAIL
76<a misquoted '>' unbalanced right bracket is bad >;
77