locale.t

UNIX下perl实现代码

	    }
	}
	foreach my $lang (split(/ /, $language_codes)) {
	    trylocale($lang);
	    foreach my $country (split(/ /, $country_codes)) {
		my $lc = "${lang}_${country}";
		trylocale($lc);
		foreach my $enc (@enc) {
		    trylocale("$lc.$enc");
		}
		my $lC = "${lang}_\U${country}";
		trylocale($lC);
		foreach my $enc (@enc) {
		    trylocale("$lC.$enc");
		}
	    }
	}
    }
}

setlocale(LC_ALL, "C");

sub utf8locale { $_[0] =~ /utf-?8/i }

@Locale = sort @Locale;

debug "# Locales = @Locale\n";

my %Problem;
my %Okay;
my %Testing;
my @Neoalpha;
my %Neoalpha;

sub tryneoalpha {
    my ($Locale, $i, $test) = @_;
    unless ($test) {
	$Problem{$i}{$Locale} = 1;
	debug "# failed $i with locale '$Locale'\n";
    } else {
	push @{$Okay{$i}}, $Locale;
    }
}

foreach $Locale (@Locale) {
    debug "# Locale = $Locale\n";
    @Alnum_ = getalnum_();
    debug "# w = ", join("",@Alnum_), "\n";

    unless (setlocale(LC_ALL, $Locale)) {
	foreach (99..103) {
	    $Problem{$_}{$Locale} = -1;
	}
	next;
    }

    # Sieve the uppercase and the lowercase.
    
    my %UPPER = ();
    my %lower = ();
    my %BoThCaSe = ();
    for (@Alnum_) {
	if (/[^\d_]/) { # skip digits and the _
	    if (uc($_) eq $_) {
		$UPPER{$_} = $_;
	    }
	    if (lc($_) eq $_) {
		$lower{$_} = $_;
	    }
	}
    }
    foreach (keys %UPPER) {
	$BoThCaSe{$_}++ if exists $lower{$_};
    }
    foreach (keys %lower) {
	$BoThCaSe{$_}++ if exists $UPPER{$_};
    }
    foreach (keys %BoThCaSe) {
	delete $UPPER{$_};
	delete $lower{$_};
    }

    debug "# UPPER    = ", join("", sort keys %UPPER   ), "\n";
    debug "# lower    = ", join("", sort keys %lower   ), "\n";
    debug "# BoThCaSe = ", join("", sort keys %BoThCaSe), "\n";

    # Find the alphabets that are not alphabets in the default locale.

    {
	no locale;
    
	@Neoalpha = ();
	for (keys %UPPER, keys %lower) {
	    push(@Neoalpha, $_) if (/\W/);
	    $Neoalpha{$_} = $_;
	}
    }

    @Neoalpha = sort @Neoalpha;

    debug "# Neoalpha = ", join("",@Neoalpha), "\n";

    if (@Neoalpha == 0) {
	# If we have no Neoalphas the remaining tests are no-ops.
	debug "# no Neoalpha, skipping tests 99..102 for locale '$Locale'\n";
	foreach (99..102) {
	    push @{$Okay{$_}}, $Locale;
	}
    } else {

	# Test \w.
    
	if (utf8locale($Locale)) {
	    # Until the polymorphic regexen arrive.
	    debug "# skipping UTF-8 locale '$Locale'\n";
	} else {
	    my $word = join('', @Neoalpha);

	    $word =~ /^(\w+)$/;

	    tryneoalpha($Locale, 99, $1 eq $word);
	}

	# Cross-check the whole 8-bit character set.

	for (map { chr } 0..255) {
	    tryneoalpha($Locale, 100,
			(/\w/ xor /\W/) ||
			(/\d/ xor /\D/) ||
			(/\s/ xor /\S/));
	}

	# Test for read-only scalars' locale vs non-locale comparisons.

	{
	    no locale;
	    $a = "qwerty";
	    {
		use locale;
		tryneoalpha($Locale, 101, ($a cmp "qwerty") == 0);
	    }
	}

	{
	    my ($from, $to, $lesser, $greater,
		@test, %test, $test, $yes, $no, $sign);

	    for (0..9) {
		# Select a slice.
		$from = int(($_*@Alnum_)/10);
		$to = $from + int(@Alnum_/10);
		$to = $#Alnum_ if ($to > $#Alnum_);
		$lesser  = join('', @Alnum_[$from..$to]);
		# Select a slice one character on.
		$from++; $to++;
		$to = $#Alnum_ if ($to > $#Alnum_);
		$greater = join('', @Alnum_[$from..$to]);
		($yes, $no, $sign) = ($lesser lt $greater
				      ? ("    ", "not ", 1)
				      : ("not ", "    ", -1));
		# all these tests should FAIL (return 0).
		# Exact lt or gt cannot be tested because
		# in some locales, say, eacute and E may test equal.
		@test = 
		    (
		     $no.'    ($lesser  le $greater)',  # 1
		     'not      ($lesser  ne $greater)', # 2
		     '         ($lesser  eq $greater)', # 3
		     $yes.'    ($lesser  ge $greater)', # 4
		     $yes.'    ($lesser  ge $greater)', # 5
		     $yes.'    ($greater le $lesser )', # 7
		     'not      ($greater ne $lesser )', # 8
		     '         ($greater eq $lesser )', # 9
		     $no.'     ($greater ge $lesser )', # 10
		     'not (($lesser cmp $greater) == -$sign)' # 12
		     );
		@test{@test} = 0 x @test;
		$test = 0;
		for my $ti (@test) {
		    $test{$ti} = eval $ti;
		    $test ||= $test{$ti}
		}
		tryneoalpha($Locale, 102, $test == 0);
		if ($test) {
		    debug "# lesser  = '$lesser'\n";
		    debug "# greater = '$greater'\n";
		    debug "# lesser cmp greater = ",
		          $lesser cmp $greater, "\n";
		    debug "# greater cmp lesser = ",
		          $greater cmp $lesser, "\n";
		    debug "# (greater) from = $from, to = $to\n";
		    for my $ti (@test) {
			debugf("# %-40s %-4s", $ti,
			       $test{$ti} ? 'FAIL' : 'ok');
			if ($ti =~ /\(\.*(\$.+ +cmp +\$[^\)]+)\.*\)/) {
			    debugf("(%s == %4d)", $1, eval $1);
			}
			debug "\n#";
		    }

		    last;
		}
	    }
	}
    }

    use locale;

    my ($x, $y) = (1.23, 1.23);

    my $a = "$x";
    printf ''; # printf used to reset locale to "C"
    my $b = "$y";

    debug "# 103..107: a = $a, b = $b, Locale = $Locale\n";

    tryneoalpha($Locale, 103, $a eq $b);

    my $c = "$x";
    my $z = sprintf ''; # sprintf used to reset locale to "C"
    my $d = "$y";

    debug "# 104..107: c = $c, d = $d, Locale = $Locale\n";

    tryneoalpha($Locale, 104, $c eq $d); 

    {
	use warnings;
	my $w = 0;
	local $SIG{__WARN__} = sub { $w++ };

	# the == (among other ops) used to warn for locales
	# that had something else than "." as the radix character

	tryneoalpha($Locale, 105, $c == 1.23);

	tryneoalpha($Locale, 106, $c == $x);

	tryneoalpha($Locale, 107, $c == $d);

	{
	    no locale;
	
	    my $e = "$x";

	    debug "# 108..110: e = $e, Locale = $Locale\n";

	    tryneoalpha($Locale, 108, $e == 1.23);

	    tryneoalpha($Locale, 109, $e == $x);
	    
	    tryneoalpha($Locale, 110, $e == $c);
	}
	
	tryneoalpha($Locale, 111, $w == 0);

	my $f = "1.23";

	debug "# 112..114: f = $f, locale = $Locale\n";

	tryneoalpha($Locale, 112, $f == 1.23);

	tryneoalpha($Locale, 113, $f == $x);
	
	tryneoalpha($Locale, 114, $f == $c);
    }

    # Does taking lc separately differ from taking
    # the lc "in-line"?  (This was the bug 19990704.002, change #3568.)
    # The bug was in the caching of the 'o'-magic.
    {
	use locale;

	sub lcA {
	    my $lc0 = lc $_[0];
	    my $lc1 = lc $_[1];
	    return $lc0 cmp $lc1;
	}

        sub lcB {
	    return lc($_[0]) cmp lc($_[1]);
	}

        my $x = "ab";
        my $y = "aa";
        my $z = "AB";

        tryneoalpha($Locale, 115,
		    lcA($x, $y) == 1 && lcB($x, $y) == 1 ||
		    lcA($x, $z) == 0 && lcB($x, $z) == 0);
    }

    # Does lc of an UPPER (if different from the UPPER) match
    # case-insensitively the UPPER, and does the UPPER match
    # case-insensitively the lc of the UPPER.  And vice versa.
    if (utf8locale($Locale)) {
        # Until the polymorphic regexen arrive.
        debug "# skipping UTF-8 locale '$Locale'\n";
    } else {
	use locale;

	my @f = ();
	foreach my $x (keys %UPPER) {
	    my $y = lc $x;
	    next unless uc $y eq $x;
	    push @f, $x unless $x =~ /$y/i && $y =~ /$x/i;
	}
	foreach my $x (keys %lower) {
	    my $y = uc $x;
	    next unless lc $y eq $x;
	    push @f, $x unless $x =~ /$y/i && $y =~ /$x/i;
	}
	tryneoalpha($Locale, 116, @f == 0);
        if (@f) {
	    print "# failed 116 locale '$Locale' characters @f\n"
        }
    }

}

# Recount the errors.

foreach (99..$last) {
    if ($Problem{$_} || !defined $Okay{$_} || !@{$Okay{$_}}) {
	if ($_ == 102) {
	    print "# The failure of test 102 is not necessarily fatal.\n";
	    print "# It usually indicates a problem in the enviroment,\n";
	    print "# not in Perl itself.\n";
	}
	print "not ";
    }
    print "ok $_\n";
}

# Give final advice.

my $didwarn = 0;

foreach (99..$last) {
    if ($Problem{$_}) {
	my @f = sort keys %{ $Problem{$_} };
	my $f = join(" ", @f);
	$f =~ s/(.{50,60}) /$1\n#\t/g;
	print
	    "#\n",
            "# The locale ", (@f == 1 ? "definition" : "definitions"), "\n#\n",
	    "#\t", $f, "\n#\n",
	    "# on your system may have errors because the locale test $_\n",
            "# failed in ", (@f == 1 ? "that locale" : "those locales"),
            ".\n";
	print <<EOW;
#
# If your users are not using these locales you are safe for the moment,
# but please report this failure first to perlbug\@perl.com using the
# perlbug script (as described in the INSTALL file) so that the exact
# details of the failures can be sorted out first and then your operating
# system supplier can be alerted about these anomalies.
#
EOW
	$didwarn = 1;
    }
}

# Tell which locales were okay and which were not.

if ($didwarn) {
    my (@s, @F);
    
    foreach my $l (@Locale) {
	my $p = 0;
	foreach my $t (102..$last) {
	    $p++ if $Problem{$t}{$l};
	}
	push @s, $l if $p == 0;
      push @F, $l unless $p == 0;
    }
    
    if (@s) {
        my $s = join(" ", @s);
        $s =~ s/(.{50,60}) /$1\n#\t/g;

        warn
    	    "# The following locales\n#\n",
            "#\t", $s, "\n#\n",
	    "# tested okay.\n#\n",
    } else {
        warn "# None of your locales were fully okay.\n";
    }

    if (@F) {
        my $F = join(" ", @F);
        $F =~ s/(.{50,60}) /$1\n#\t/g;

        warn
          "# The following locales\n#\n",
            "#\t", $F, "\n#\n",
          "# had problems.\n#\n",
    } else {
        warn "# None of your locales were broken.\n";
    }
}

# eof