BEGIN { if ($ENV{PERL_CORE}) { chdir('t') if -d 't'; @INC = qw(../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..19\n"; } END {print "not ok 1\n" unless $loaded;} use Text::Balanced qw ( extract_bracketed ); $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 = )) { 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"; $var = eval "() = $cmd"; debug "\t list got: [$var]\n"; debug "\t list left: [$str]\n"; print "not " if (substr($str,pos($str),1) eq ';')==$neg; print "ok ", $count++; print " ($@)" if $@ && $DEBUG; print "\n"; pos $str = 0; $var = eval $cmd; $var = "" 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 $@ && $DEBUG; print "\n"; } __DATA__ # USING: extract_bracketed($str); {a nested { and } are okay as are () and <> pairs and escaped \}'s }; {a nested\n{ and } are okay as are\n() and <> pairs and escaped \}'s }; # USING: extract_bracketed($str,'{}'); {a nested { and } are okay as are unbalanced ( and < pairs and escaped \}'s }; # THESE SHOULD FAIL {an unmatched nested { isn't okay, nor are ( and < }; {an unbalanced nested [ even with } and ] to match them; # USING: extract_bracketed($str,'<"`q>'); " unbalanced right bracket of /(q>)/ either sort (`>>>""">>>>`) is okay >; # USING: extract_bracketed($str,'<">'); " unbalanced right bracket is okay >; # USING: extract_bracketed($str,'<"`>'); " unbalanced right bracket of either sort (`>>>""">>>>`) is okay >; # THIS SHOULD FAIL ' unbalanced right bracket is bad >;