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|
#!./perl
my $PERLIO;
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
unless (find PerlIO::Layer 'perlio') {
print "1..0 # Skip: not perlio\n";
exit 0;
}
eval 'use Encode';
if ($@ =~ /dynamic loading not available/) {
print "1..0 # miniperl cannot load Encode\n";
exit 0;
}
# Makes testing easier.
$ENV{PERLIO} = 'stdio' if exists $ENV{PERLIO} && $ENV{PERLIO} eq '';
if (exists $ENV{PERLIO} && $ENV{PERLIO} !~ /^(stdio|perlio|mmap)$/) {
# We are not prepared for anything else.
print "1..0 # PERLIO='$ENV{PERLIO}' unknown\n";
exit 0;
}
$PERLIO = exists $ENV{PERLIO} ? $ENV{PERLIO} : "(undef)";
}
plan tests => 43;
use Config;
my $DOSISH = $^O =~ /^(?:MSWin32|os2|dos|NetWare|mint)$/ ? 1 : 0;
$DOSISH = 1 if !$DOSISH and $^O =~ /^uwin/;
my $NONSTDIO = exists $ENV{PERLIO} && $ENV{PERLIO} ne 'stdio' ? 1 : 0;
my $FASTSTDIO = $Config{d_faststdio} && $Config{usefaststdio} ? 1 : 0;
print <<__EOH__;
# PERLIO = $PERLIO
# DOSISH = $DOSISH
# NONSTDIO = $NONSTDIO
# FASTSTDIO = $FASTSTDIO
__EOH__
SKIP: {
skip("This perl does not have Encode", 43)
unless " $Config{extensions} " =~ / Encode /;
sub check {
my ($result, $expected, $id) = @_;
# An interesting dance follows where we try to make the following
# IO layer stack setups to compare equal:
#
# PERLIO UNIX-like DOS-like
#
# unset / "" unix perlio / stdio [1] unix crlf
# stdio unix perlio / stdio [1] stdio
# perlio unix perlio unix perlio
# mmap unix mmap unix mmap
#
# [1] "stdio" if Configure found out how to do "fast stdio" (depends
# on the stdio implementation) and in Perl 5.8, otherwise "unix perlio"
#
if ($NONSTDIO) {
# Get rid of "unix".
shift @$result if $result->[0] eq "unix";
# Change expectations.
if ($FASTSTDIO) {
$expected->[0] = $ENV{PERLIO};
} else {
$expected->[0] = $ENV{PERLIO} if $expected->[0] eq "stdio";
}
} elsif (!$FASTSTDIO && !$DOSISH) {
splice(@$result, 0, 2, "stdio")
if @$result >= 2 &&
$result->[0] eq "unix" &&
$result->[1] eq "perlio";
} elsif ($DOSISH) {
splice(@$result, 0, 2, "stdio")
if @$result >= 2 &&
$result->[0] eq "unix" &&
$result->[1] eq "crlf";
}
my $n = scalar @$expected;
is($n, scalar @$expected, "$id - layers = $n");
for (my $i = 0; $i < $n; $i++) {
my $j = $expected->[$i];
if (ref $j eq 'CODE') {
ok($j->($result->[$i]), "$id - $i is ok");
} else {
is($result->[$i], $j,
sprintf("$id - $i is %s",
defined $j ? $j : "undef"));
}
}
}
check([ PerlIO::get_layers(STDIN) ],
[ "stdio" ],
"STDIN");
open(F, ">:crlf", "afile");
check([ PerlIO::get_layers(F) ],
[ qw(stdio crlf) ],
"open :crlf");
binmode(F, ":encoding(sjis)"); # "sjis" will be canonized to "shiftjis"
check([ PerlIO::get_layers(F) ],
[ qw[stdio crlf encoding(shiftjis) utf8] ],
":encoding(sjis)");
binmode(F, ":pop");
check([ PerlIO::get_layers(F) ],
[ qw(stdio crlf) ],
":pop");
binmode(F, ":raw");
check([ PerlIO::get_layers(F) ],
[ "stdio" ],
":raw");
binmode(F, ":pop") if $DOSISH; # Drop one extra :crlf.
binmode(F, ":utf8");
check([ PerlIO::get_layers(F) ],
[ qw(stdio utf8) ],
":utf8");
binmode(F, ":bytes");
check([ PerlIO::get_layers(F) ],
[ "stdio" ],
":bytes");
binmode(F, ":encoding(utf8)");
check([ PerlIO::get_layers(F) ],
[ qw[stdio encoding(utf8) utf8] ],
":encoding(utf8)");
binmode(F, ":raw :crlf");
check([ PerlIO::get_layers(F) ],
[ qw(stdio crlf) ],
":raw:crlf");
binmode(F, ":raw :encoding(latin1)"); # "latin1" will be canonized
SKIP: {
skip("too complex layer coreography", 7) if $DOSISH || !$FASTSTDIO;
my @results = PerlIO::get_layers(F, details => 1);
# Get rid of the args and the flags.
splice(@results, 1, 2) if $NONSTDIO;
check([ @results ],
[ "stdio", undef, sub { $_[0] > 0 },
"encoding", "iso-8859-1", sub { $_[0] & PerlIO::F_UTF8() } ],
":raw:encoding(latin1)");
}
binmode(F);
check([ PerlIO::get_layers(F) ],
[ "stdio" ],
"binmode");
close F;
{
use open(IN => ":crlf", OUT => ":encoding(cp1252)");
open F, "<afile";
open G, ">afile";
check([ PerlIO::get_layers(F, input => 1) ],
[ qw(stdio crlf) ],
"use open IN");
check([ PerlIO::get_layers(G, output => 1) ],
[ qw[stdio encoding(cp1252) utf8] ],
"use open OUT");
close F;
close G;
}
1 while unlink "afile";
}
|
