14 print $ok ? "ok $test - $name\n" : "not ok $test - $name\n";
18 ok( $_ eq 'global', '$_ initial value' );
20 ok( $_ eq 'glabol', 's/// on global $_' );
24 ok( $_ eq 'local', 'my $_ initial value' );
26 ok( $_ eq 'lacol', 's/// on my $_' );
28 ok( $1 eq 'la', '// on my $_' );
29 ok( tr/c/d/ == 1, 'tr/// on my $_ counts correctly' );
30 ok( $_ eq 'ladol', 'tr/// on my $_' );
33 ok( $_ eq 'nested', 'my $_ nested' );
35 ok( $_ eq 'neste', 'chop on my $_' );
39 ok( $_ eq 'glabol', 'gains access to our global $_' );
41 ok( $_ eq 'ladol', 'my $_ restored' );
43 ok( $_ eq 'glabol', 'global $_ restored' );
45 ok( $_ eq 'global', 's/// on global $_ again' );
49 ok( $_ eq 22, 'our $_ is seen explicitly' );
51 ok( $_ eq 2, '...default chop chops our $_' );
53 ok( $1 eq 2, '...default match sees our $_' );
60 ok( $_ eq "foo", 'for my $_' );
62 ok( $1 eq "f", '...m// in for my $_' );
63 ok( our $_ eq 'global', '...our $_ inside for my $_' );
65 ok( $_ eq 'local', '...my $_ restored outside for my $_' );
66 ok( our $_ eq 'global', '...our $_ restored outside for my $_' );
70 for ("implicit foo") { # implicit "my $_"
71 ok( $_ eq "implicit foo", 'for implicit my $_' );
73 ok( $1 eq "i", '...m// in for implicity my $_' );
74 ok( our $_ eq 'global', '...our $_ inside for implicit my $_' );
76 ok( $_ eq 'local', '...my $_ restored outside for implicit my $_' );
77 ok( our $_ eq 'global', '...our $_ restored outside for implicit my $_' );
81 ok( $_ eq "postfix foo", 'postfix for' ) for 'postfix foo';
82 ok( $_ eq 'local', '...my $_ restored outside postfix for' );
83 ok( our $_ eq 'global', '...our $_ restored outside postfix for' );
87 ok( $_ eq "bar", 'for our $_' );
89 ok( $1 eq "b", '...m// in for our $_' );
91 ok( $_ eq 'global', '...our $_ restored outside for our $_' );
96 sub tmap1 { /(.)/; $buf .= $1 } # uses our $_
98 sub tmap2 { /(.)/; $buf .= $1 } # uses my $_
102 ok( /^[67]\z/, 'local lexical $_ is seen in map' );
103 { ok( our $_ eq 'global', 'our $_ still visible' ); }
104 ok( $_ == 6 || $_ == 7, 'local lexical $_ is still seen in map' );
105 { my $_ ; ok( !defined, 'nested my $_ is undefined' ); }
107 ok( $buf eq 'gxgx', q/...map doesn't modify outer lexical $_/ );
108 ok( $_ eq 'x', '...my $_ restored outside map' );
109 ok( our $_ eq 'global', '...our $_ restored outside map' );
110 map { my $_; ok( !defined, 'redeclaring $_ in map block undefs it' ); } 1;
112 { map { my $_; ok( !defined, 'declaring $_ in map block undefs it' ); } 1; }
114 sub tmap3 () { return $_ };
116 sub tmap4 () { return $_ };
117 my $x = join '-', map $_.tmap3.tmap4, 1 .. 2;
118 ok( $x eq '1globallocal-2globallocal', 'map without {}' );
122 my $x = map $_, qw(a b);
123 ok( $x == 2, 'map in scalar context' );
128 sub tgrep1 { /(.)/; $buf .= $1 }
130 sub tgrep2 { /(.)/; $buf .= $1 }
134 ok( /^[89]\z/, 'local lexical $_ is seen in grep' );
135 { ok( our $_ eq 'global', 'our $_ still visible' ); }
136 ok( $_ == 8 || $_ == 9, 'local lexical $_ is still seen in grep' );
138 ok( $buf eq 'gygy', q/...grep doesn't modify outer lexical $_/ );
139 ok( $_ eq 'y', '...my $_ restored outside grep' );
140 ok( our $_ eq 'global', '...our $_ restored outside grep' );
143 sub tgrep3 () { return $_ };
145 sub tgrep4 () { return $_ };
146 my $x = join '-', grep $_=$_.tgrep3.tgrep4, 1 .. 2;
147 ok( $x eq '1globallocal-2globallocal', 'grep without {} with side-effect' );
148 ok( $_ eq 'local', '...but without extraneous side-effects' );
152 my $x = grep $_, qw(a b);
153 ok( $x == 2, 'grep in scalar context' );
159 $s =~ /to(?{ ok( $_ eq 'toto', 'my $_ in code-match # TODO' ) })to/
160 or ok( 0, "\$s=$s should match!" );
161 ok( our $_ eq 'global', '...our $_ restored outside code-match' );
167 ok( $x eq "cba", 'reverse without arguments picks up $_' );
173 ::ok( $::_ eq 'notmain', 'our $_ forced into main::' );
175 ::ok( $1 eq 'notmain', '...m// defaults to our $_ in main::' );
178 my $file = 'dolbar1.tmp';
179 END { unlink $file; }
181 open my $_, '>', $file or die "Can't open $file: $!";
184 ok( -s $file, 'writing to filehandle $_ works' );
187 open my $_, $file or die "Can't open $file: $!";
189 ok( $x eq "hello\n", 'reading from <$_> works' );
195 ok( $fqdb::_ eq 'fqdb', 'fully qualified $_ is not in main' );
196 ok( eval q/$fqdb::_/ eq 'fqdb', 'fully qualified, evaled $_ is not in main' );
198 ::ok( $_ ne 'fqdb', 'unqualified $_ is in main' );
199 ::ok( q/$_/ ne 'fqdb', 'unqualified, evaled $_ is in main' );