| 1 | #!./perl |
| 2 | |
| 3 | my $PERLIO; |
| 4 | |
| 5 | BEGIN { |
| 6 | chdir 't' if -d 't'; |
| 7 | @INC = '../lib'; |
| 8 | require './test.pl'; |
| 9 | unless (find PerlIO::Layer 'perlio') { |
| 10 | print "1..0 # Skip: not perlio\n"; |
| 11 | exit 0; |
| 12 | } |
| 13 | eval 'use Encode'; |
| 14 | if ($@ =~ /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 | |
| 28 | use Config; |
| 29 | |
| 30 | my $DOSISH = $^O =~ /^(?:MSWin32|os2|dos|NetWare|mint)$/ ? 1 : 0; |
| 31 | $DOSISH = 1 if !$DOSISH and $^O =~ /^uwin/; |
| 32 | my $NONSTDIO = exists $ENV{PERLIO} && $ENV{PERLIO} ne 'stdio' ? 1 : 0; |
| 33 | my $FASTSTDIO = $Config{d_faststdio} && $Config{usefaststdio} ? 1 : 0; |
| 34 | |
| 35 | my $NTEST = 43 - (($DOSISH || !$FASTSTDIO) ? 7 : 0) - ($DOSISH ? 5 : 0); |
| 36 | |
| 37 | plan tests => $NTEST; |
| 38 | |
| 39 | print <<__EOH__; |
| 40 | # PERLIO = $PERLIO |
| 41 | # DOSISH = $DOSISH |
| 42 | # NONSTDIO = $NONSTDIO |
| 43 | # FASTSTDIO = $FASTSTDIO |
| 44 | __EOH__ |
| 45 | |
| 46 | SKIP: { |
| 47 | skip("This perl does not have Encode", $NTEST) |
| 48 | unless " $Config{extensions} " =~ / Encode /; |
| 49 | |
| 50 | sub check { |
| 51 | my ($result, $expected, $id) = @_; |
| 52 | # An interesting dance follows where we try to make the following |
| 53 | # IO layer stack setups to compare equal: |
| 54 | # |
| 55 | # PERLIO UNIX-like DOS-like |
| 56 | # |
| 57 | # unset / "" unix perlio / stdio [1] unix crlf |
| 58 | # stdio unix perlio / stdio [1] stdio |
| 59 | # perlio unix perlio unix perlio |
| 60 | # mmap unix mmap unix mmap |
| 61 | # |
| 62 | # [1] "stdio" if Configure found out how to do "fast stdio" (depends |
| 63 | # on the stdio implementation) and in Perl 5.8, otherwise "unix perlio" |
| 64 | # |
| 65 | if ($NONSTDIO) { |
| 66 | # Get rid of "unix". |
| 67 | shift @$result if $result->[0] eq "unix"; |
| 68 | # Change expectations. |
| 69 | if ($FASTSTDIO) { |
| 70 | $expected->[0] = $ENV{PERLIO}; |
| 71 | } else { |
| 72 | $expected->[0] = $ENV{PERLIO} if $expected->[0] eq "stdio"; |
| 73 | } |
| 74 | } elsif (!$FASTSTDIO && !$DOSISH) { |
| 75 | splice(@$result, 0, 2, "stdio") |
| 76 | if @$result >= 2 && |
| 77 | $result->[0] eq "unix" && |
| 78 | $result->[1] eq "perlio"; |
| 79 | } elsif ($DOSISH) { |
| 80 | splice(@$result, 0, 2, "stdio") |
| 81 | if @$result >= 2 && |
| 82 | $result->[0] eq "unix" && |
| 83 | $result->[1] eq "crlf"; |
| 84 | } |
| 85 | if ($DOSISH && grep { $_ eq 'crlf' } @$expected) { |
| 86 | # 5 tests potentially skipped because |
| 87 | # DOSISH systems already have a CRLF layer |
| 88 | # which will make new ones not stick. |
| 89 | @$expected = grep { $_ ne 'crlf' } @$expected; |
| 90 | } |
| 91 | my $n = scalar @$expected; |
| 92 | is($n, scalar @$expected, "$id - layers == $n"); |
| 93 | for (my $i = 0; $i < $n; $i++) { |
| 94 | my $j = $expected->[$i]; |
| 95 | if (ref $j eq 'CODE') { |
| 96 | ok($j->($result->[$i]), "$id - $i is ok"); |
| 97 | } else { |
| 98 | is($result->[$i], $j, |
| 99 | sprintf("$id - $i is %s", |
| 100 | defined $j ? $j : "undef")); |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | check([ PerlIO::get_layers(STDIN) ], |
| 106 | [ "stdio" ], |
| 107 | "STDIN"); |
| 108 | |
| 109 | open(F, ">:crlf", "afile"); |
| 110 | |
| 111 | check([ PerlIO::get_layers(F) ], |
| 112 | [ qw(stdio crlf) ], |
| 113 | "open :crlf"); |
| 114 | |
| 115 | binmode(F, ":encoding(sjis)"); # "sjis" will be canonized to "shiftjis" |
| 116 | |
| 117 | check([ PerlIO::get_layers(F) ], |
| 118 | [ qw[stdio crlf encoding(shiftjis) utf8] ], |
| 119 | ":encoding(sjis)"); |
| 120 | |
| 121 | binmode(F, ":pop"); |
| 122 | |
| 123 | check([ PerlIO::get_layers(F) ], |
| 124 | [ qw(stdio crlf) ], |
| 125 | ":pop"); |
| 126 | |
| 127 | binmode(F, ":raw"); |
| 128 | |
| 129 | check([ PerlIO::get_layers(F) ], |
| 130 | [ "stdio" ], |
| 131 | ":raw"); |
| 132 | |
| 133 | binmode(F, ":utf8"); |
| 134 | |
| 135 | check([ PerlIO::get_layers(F) ], |
| 136 | [ qw(stdio utf8) ], |
| 137 | ":utf8"); |
| 138 | |
| 139 | binmode(F, ":bytes"); |
| 140 | |
| 141 | check([ PerlIO::get_layers(F) ], |
| 142 | [ "stdio" ], |
| 143 | ":bytes"); |
| 144 | |
| 145 | binmode(F, ":encoding(utf8)"); |
| 146 | |
| 147 | check([ PerlIO::get_layers(F) ], |
| 148 | [ qw[stdio encoding(utf8) utf8] ], |
| 149 | ":encoding(utf8)"); |
| 150 | |
| 151 | binmode(F, ":raw :crlf"); |
| 152 | |
| 153 | check([ PerlIO::get_layers(F) ], |
| 154 | [ qw(stdio crlf) ], |
| 155 | ":raw:crlf"); |
| 156 | |
| 157 | binmode(F, ":raw :encoding(latin1)"); # "latin1" will be canonized |
| 158 | |
| 159 | # 7 tests potentially skipped. |
| 160 | unless ($DOSISH || !$FASTSTDIO) { |
| 161 | my @results = PerlIO::get_layers(F, details => 1); |
| 162 | |
| 163 | # Get rid of the args and the flags. |
| 164 | splice(@results, 1, 2) if $NONSTDIO; |
| 165 | |
| 166 | check([ @results ], |
| 167 | [ "stdio", undef, sub { $_[0] > 0 }, |
| 168 | "encoding", "iso-8859-1", sub { $_[0] & PerlIO::F_UTF8() } ], |
| 169 | ":raw:encoding(latin1)"); |
| 170 | } |
| 171 | |
| 172 | binmode(F); |
| 173 | |
| 174 | check([ PerlIO::get_layers(F) ], |
| 175 | [ "stdio" ], |
| 176 | "binmode"); |
| 177 | |
| 178 | close F; |
| 179 | |
| 180 | { |
| 181 | use open(IN => ":crlf", OUT => ":encoding(cp1252)"); |
| 182 | |
| 183 | open F, "<afile"; |
| 184 | open G, ">afile"; |
| 185 | |
| 186 | check([ PerlIO::get_layers(F, input => 1) ], |
| 187 | [ qw(stdio crlf) ], |
| 188 | "use open IN"); |
| 189 | |
| 190 | check([ PerlIO::get_layers(G, output => 1) ], |
| 191 | [ qw[stdio encoding(cp1252) utf8] ], |
| 192 | "use open OUT"); |
| 193 | |
| 194 | close F; |
| 195 | close G; |
| 196 | } |
| 197 | |
| 198 | 1 while unlink "afile"; |
| 199 | } |