1#!./perl 2 3my $PERLIO; 4 5BEGIN { 6 chdir 't' if -d 't'; 7 @INC = '../lib'; 8 require './test.pl'; 9 unless (find PerlIO::Layer 'perlio') { 10 print "1..0 # Skip: not perlio\n"; 11 exit 0; 12 } 13 eval 'use Encode'; 14 if ($@ =~ /dynamic loading not available/) { 15 print "1..0 # miniperl cannot load Encode\n"; 16 exit 0; 17 } 18 # Makes testing easier. 19 $ENV{PERLIO} = 'stdio' if exists $ENV{PERLIO} && $ENV{PERLIO} eq ''; 20 if (exists $ENV{PERLIO} && $ENV{PERLIO} !~ /^(stdio|perlio|mmap)$/) { 21 # We are not prepared for anything else. 22 print "1..0 # PERLIO='$ENV{PERLIO}' unknown\n"; 23 exit 0; 24 } 25 $PERLIO = exists $ENV{PERLIO} ? $ENV{PERLIO} : "(undef)"; 26} 27 28use Config; 29 30my $DOSISH = $^O =~ /^(?:MSWin32|os2|dos|NetWare)$/ ? 1 : 0; 31 $DOSISH = 1 if !$DOSISH and $^O =~ /^uwin/; 32my $NONSTDIO = exists $ENV{PERLIO} && $ENV{PERLIO} ne 'stdio' ? 1 : 0; 33my $FASTSTDIO = $Config{d_faststdio} && $Config{usefaststdio} ? 1 : 0; 34my $UTF8_STDIN; 35if (${^UNICODE} & 1) { 36 if (${^UNICODE} & 64) { 37 # Conditional on the locale 38 $UTF8_STDIN = ${^UTF8LOCALE}; 39 } else { 40 # Unconditional 41 $UTF8_STDIN = 1; 42 } 43} else { 44 $UTF8_STDIN = 0; 45} 46my $NTEST = 44 - (($DOSISH || !$FASTSTDIO) ? 7 : 0) - ($DOSISH ? 5 : 0) 47 + $UTF8_STDIN; 48 49sub PerlIO::F_UTF8 () { 0x00008000 } # from perliol.h 50 51plan tests => $NTEST; 52 53print <<__EOH__; 54# PERLIO = $PERLIO 55# DOSISH = $DOSISH 56# NONSTDIO = $NONSTDIO 57# FASTSTDIO = $FASTSTDIO 58# UNICODE = ${^UNICODE} 59# UTF8LOCALE = ${^UTF8LOCALE} 60# UTF8_STDIN = $UTF8_STDIN 61__EOH__ 62 63SKIP: { 64 # FIXME - more of these could be tested without Encode or full perl 65 skip("This perl does not have Encode", $NTEST) 66 unless " $Config{extensions} " =~ / Encode /; 67 skip("miniperl does not have Encode", $NTEST) if $ENV{PERL_CORE_MINITEST}; 68 69 sub check { 70 my ($result, $expected, $id) = @_; 71 # An interesting dance follows where we try to make the following 72 # IO layer stack setups to compare equal: 73 # 74 # PERLIO UNIX-like DOS-like 75 # 76 # unset / "" unix perlio / stdio [1] unix crlf 77 # stdio unix perlio / stdio [1] stdio 78 # perlio unix perlio unix perlio 79 # mmap unix mmap unix mmap 80 # 81 # [1] "stdio" if Configure found out how to do "fast stdio" (depends 82 # on the stdio implementation) and in Perl 5.8, otherwise "unix perlio" 83 # 84 if ($NONSTDIO) { 85 # Get rid of "unix". 86 shift @$result if $result->[0] eq "unix"; 87 # Change expectations. 88 if ($FASTSTDIO) { 89 $expected->[0] = $ENV{PERLIO}; 90 } else { 91 $expected->[0] = $ENV{PERLIO} if $expected->[0] eq "stdio"; 92 } 93 } elsif (!$FASTSTDIO && !$DOSISH) { 94 splice(@$result, 0, 2, "stdio") 95 if @$result >= 2 && 96 $result->[0] eq "unix" && 97 $result->[1] eq "perlio"; 98 } elsif ($DOSISH) { 99 splice(@$result, 0, 2, "stdio") 100 if @$result >= 2 && 101 $result->[0] eq "unix" && 102 $result->[1] eq "crlf"; 103 } 104 if ($DOSISH && grep { $_ eq 'crlf' } @$expected) { 105 # 5 tests potentially skipped because 106 # DOSISH systems already have a CRLF layer 107 # which will make new ones not stick. 108 @$expected = grep { $_ ne 'crlf' } @$expected; 109 } 110 my $n = scalar @$expected; 111 is(scalar @$result, $n, "$id - layers == $n"); 112 for (my $i = 0; $i < $n; $i++) { 113 my $j = $expected->[$i]; 114 if (ref $j eq 'CODE') { 115 ok($j->($result->[$i]), "$id - $i is ok"); 116 } else { 117 is($result->[$i], $j, 118 sprintf("$id - $i is %s", 119 defined $j ? $j : "undef")); 120 } 121 } 122 } 123 124 check([ PerlIO::get_layers(STDIN) ], 125 $UTF8_STDIN ? [ "stdio", "utf8" ] : [ "stdio" ], 126 "STDIN"); 127 128 my $afile = tempfile(); 129 open(F, ">:crlf", $afile); 130 131 check([ PerlIO::get_layers(F) ], 132 [ qw(stdio crlf) ], 133 "open :crlf"); 134 135 binmode(F, ":encoding(cp1047)"); 136 137 check([ PerlIO::get_layers(F) ], 138 [ qw[stdio crlf encoding(cp1047) utf8] ], 139 ":encoding(cp1047)"); 140 141 binmode(F, ":pop"); 142 143 check([ PerlIO::get_layers(F) ], 144 [ qw(stdio crlf) ], 145 ":pop"); 146 147 binmode(F, ":raw"); 148 149 check([ PerlIO::get_layers(F) ], 150 [ "stdio" ], 151 ":raw"); 152 153 binmode(F, ":utf8"); 154 155 check([ PerlIO::get_layers(F) ], 156 [ qw(stdio utf8) ], 157 ":utf8"); 158 159 binmode(F, ":bytes"); 160 161 check([ PerlIO::get_layers(F) ], 162 [ "stdio" ], 163 ":bytes"); 164 165 binmode(F, ":encoding(utf8)"); 166 167 check([ PerlIO::get_layers(F) ], 168 [ qw[stdio encoding(utf8) utf8] ], 169 ":encoding(utf8)"); 170 171 binmode(F, ":raw :crlf"); 172 173 check([ PerlIO::get_layers(F) ], 174 [ qw(stdio crlf) ], 175 ":raw:crlf"); 176 177 binmode(F, ":raw :encoding(latin1)"); # "latin1" will be canonized 178 179 # 7 tests potentially skipped. 180 unless ($DOSISH || !$FASTSTDIO) { 181 my @results = PerlIO::get_layers(F, details => 1); 182 183 # Get rid of the args and the flags. 184 splice(@results, 1, 2) if $NONSTDIO; 185 186 check([ @results ], 187 [ "stdio", undef, sub { $_[0] > 0 }, 188 "encoding", "iso-8859-1", sub { $_[0] & PerlIO::F_UTF8() } ], 189 ":raw:encoding(latin1)"); 190 } 191 192 binmode(F); 193 194 check([ PerlIO::get_layers(F) ], 195 [ "stdio" ], 196 "binmode"); 197 198 close F; 199 200 { 201 use open(IN => ":crlf", OUT => ":encoding(cp1252)"); 202 203 open F, '<', $afile; 204 open G, '>', $afile; 205 206 check([ PerlIO::get_layers(F, input => 1) ], 207 [ qw(stdio crlf) ], 208 "use open IN"); 209 210 check([ PerlIO::get_layers(G, output => 1) ], 211 [ qw[stdio encoding(cp1252) utf8] ], 212 "use open OUT"); 213 214 close F; 215 close G; 216 } 217 218 # Check that PL_sigwarn's reference count is correct, and that 219 # &PerlIO::Layer::NoWarnings isn't prematurely freed. 220 fresh_perl_like (<<"EOT", qr/^CODE/); 221open(UTF, "<:raw:encoding(utf8)", '$afile') or die \$!; 222print ref *PerlIO::Layer::NoWarnings{CODE}; 223EOT 224} 225