1N/ABEGIN {

1N/A if ($ENV{PERL_CORE}) {

1N/A chdir('t') if -d 't';

1N/A @INC = qw(../lib);

1N/A }

1N/A}

1N/A

1N/A# Before `make install' is performed this script should be runnable with

1N/A# `make test'. After `make install' it should work as `perl test.pl'

1N/A

1N/A######################### We start with some black magic to print on failure.

1N/A

1N/A# Change 1..1 below to 1..last_test_to_print .

1N/A# (It may become useful if the test is moved to ./t subdirectory.)

1N/A

1N/ABEGIN { $| = 1; print "1..19\n"; }

1N/AEND {print "not ok 1\n" unless $loaded;}

1N/Ause Text::Balanced qw ( extract_bracketed );

1N/A$loaded = 1;

1N/Aprint "ok 1\n";

1N/A$count=2;

1N/Ause vars qw( $DEBUG );

1N/Asub debug { print "\t>>>",@_ if $DEBUG }

1N/A

1N/A######################### End of black magic.

1N/A

1N/A

1N/A$cmd = "print";

1N/A$neg = 0;

1N/Awhile (defined($str = <DATA>))

1N/A{

1N/A chomp $str;

1N/A if ($str =~ s/\A# USING://) { $neg = 0; $cmd = $str; next; }

1N/A elsif ($str =~ /\A# TH[EI]SE? SHOULD FAIL/) { $neg = 1; next; }

1N/A elsif (!$str || $str =~ /\A#/) { $neg = 0; next }

1N/A $str =~ s/\\n/\n/g;

1N/A debug "\tUsing: $cmd\n";

1N/A debug "\t on: [$str]\n";

1N/A

1N/A $var = eval "() = $cmd";

1N/A debug "\t list got: [$var]\n";

1N/A debug "\t list left: [$str]\n";

1N/A print "not " if (substr($str,pos($str),1) eq ';')==$neg;

1N/A print "ok ", $count++;

1N/A print " ($@)" if $@ && $DEBUG;

1N/A print "\n";

1N/A

1N/A pos $str = 0;

1N/A $var = eval $cmd;

1N/A $var = "<undef>" unless defined $var;

1N/A debug "\t scalar got: [$var]\n";

1N/A debug "\t scalar left: [$str]\n";

1N/A print "not " if ($str =~ '\A;')==$neg;

1N/A print "ok ", $count++;

1N/A print " ($@)" if $@ && $DEBUG;

1N/A print "\n";

1N/A}

1N/A

1N/A__DATA__

1N/A

1N/A# USING: extract_bracketed($str);

1N/A{a nested { and } are okay as are () and <> pairs and escaped \}'s };

1N/A{a nested\n{ and } are okay as are\n() and <> pairs and escaped \}'s };

1N/A

1N/A# USING: extract_bracketed($str,'{}');

1N/A{a nested { and } are okay as are unbalanced ( and < pairs and escaped \}'s };

1N/A

1N/A# THESE SHOULD FAIL

1N/A{an unmatched nested { isn't okay, nor are ( and < };

1N/A{an unbalanced nested [ even with } and ] to match them;

1N/A

1N/A

1N/A# USING: extract_bracketed($str,'<"`q>');

1N/A<a q{uoted} ">" unbalanced right bracket of /(q>)/ either sort (`>>>""">>>>`) is okay >;

1N/A

1N/A# USING: extract_bracketed($str,'<">');

1N/A<a quoted ">" unbalanced right bracket is okay >;

1N/A

1N/A# USING: extract_bracketed($str,'<"`>');

1N/A<a quoted ">" unbalanced right bracket of either sort (`>>>""">>>>`) is okay >;

1N/A

1N/A# THIS SHOULD FAIL

1N/A<a misquoted '>' unbalanced right bracket is bad >;