use Config;
use strict;
+use warnings;
+use feature 'state';
eval { require POSIX; import POSIX 'locale_h'; };
my $has_locale_h = ! $@;
my @known_categories = ( qw(LC_ALL LC_COLLATE LC_CTYPE LC_MESSAGES LC_MONETARY
LC_NUMERIC LC_TIME LC_ADDRESS LC_IDENTIFICATION
- LC_MEASUREMENT LC_PAPER LC_TELEPHONE));
+ LC_MEASUREMENT LC_PAPER LC_TELEPHONE LC_SYNTAX
+ LC_TOD));
my @platform_categories;
# LC_ALL can be -1 on some platforms. And, in fact the implementors could
}
sub locales_enabled(;$) {
- # Returns 0 if no locale handling is available on this platform; otherwise
- # 1.
+ # If no parameter is specified, the function returns 1 if there is any
+ # "safe" locale handling available to the caller; otherwise 0. Safeness
+ # is defined here as the caller operating in the main thread of a program,
+ # or if threaded locales are safe on the platform and Configured to be
+ # used. This sub is used for testing purposes, and for those, this
+ # definition of safety is sufficient, and necessary to get some tests to
+ # run on certain configurations on certain platforms. But beware that the
+ # main thread can change the locale of any subthreads unless
+ # ${^SAFE_LOCALES} is non-zero.
#
- # The optional parameter is a reference to a list of individual POSIX
- # locale categories. If any of the individual categories specified by the
- # optional parameter is all digits (and an optional leading minus), it is
- # taken to be the C enum for the category (e.g., &POSIX::LC_CTYPE).
- # Otherwise it should be a string name of the category, like 'LC_TIME'.
- # The initial 'LC_' is optional. It is a fatal error to call this with
- # something that isn't a known category to this file.
+ # Use the optional parameter to discover if a particular category or
+ # categories are available on the system. 1 is returned if the global
+ # criteria described in the previous paragraph are true, AND if all the
+ # specified categories are available on the platform and Configured to be
+ # used. Otherwise 0 is returned. The parameter is either a single POSIX
+ # locale category or a reference to a list of them. Each category must be
+ # its name as a string, like 'LC_TIME' (the initial 'LC_' is optional), or
+ # the number this platform uses to signify the category (e.g.,
+ # 'locales_enabled(&POSIX::LC_CTYPE)'
#
- # This optional parameter denotes which POSIX locale categories must be
- # available on the platform. If any aren't available, this function
- # returns 0; otherwise it returns 1 and changes the list for the caller so
- # that any category names are converted into their equivalent numbers, and
- # sorts it to match the expectations of _trylocale.
+ # When the function returns 1 and a parameter was specified as a list
+ # reference, the reference will be altered on return to point to an
+ # equivalent list such that the categories are numeric instead of strings
+ # and sorted to meet the input expectations of _trylocale().
#
- # It is acceptable for the second parameter to be just a simple scalar
- # denoting a single category (either name or number). No conversion into
- # a number is done in this case.
+ # It is a fatal error to call this with something that isn't a known
+ # category to this file. If this happens, look first for a typo, and
+ # second if you are using a category unknown to Perl. In the latter case
+ # a bug report should be submitted.
# khw cargo-culted the '?' in the pattern on the next line.
return 0 if $Config{ccflags} =~ /\bD?NO_LOCALE\b/;
# normally would be available
return 0 if ! defined &DynaLoader::boot_DynaLoader;
+ # Don't test locales where they aren't safe. On systems with unsafe
+ # threads, for the purposes of testing, we consider the main thread safe,
+ # and all other threads unsafe.
+ if (! ${^SAFE_LOCALES}) {
+ require threads;
+ return 0 if threads->tid() != 0;
+ }
+
+ # If no setlocale, we need the POSIX 2008 alternatives
if (! $Config{d_setlocale}) {
return 0 if $Config{ccflags} =~ /\bD?NO_POSIX_2008_LOCALE\b/;
return 0 unless $Config{d_newlocale};
# Done with the global possibilities. Now check if any passed in category
# is disabled.
- my $categories_ref = shift;
+ my $categories_ref = $_[0];
my $return_categories_numbers = 0;
my @categories_numbers;
my $has_LC_ALL = 0;
if (defined $categories_ref) {
my @local_categories_copy;
- if (ref $categories_ref) {
- @local_categories_copy = @$$categories_ref;
+ my $reftype = ref $categories_ref;
+ if ($reftype eq 'ARRAY') {
+ @local_categories_copy = @$categories_ref;
$return_categories_numbers = 1;
}
+ elsif ($reftype ne "") {
+ die "Parameter to locales_enabled() must be an ARRAY;"
+ . " instead you used a $reftype";
+ }
else { # Single category passed in
@local_categories_copy = $categories_ref;
}
if ($has_LC_ALL) {
push @categories_numbers, $category_number{'ALL'};
}
- $$categories_ref = \@categories_numbers;
+
+ @$categories_ref = @categories_numbers;
}
return 1;
# multiple) for all of them. Each category can be a name (like 'LC_ALL'
# or simply 'ALL') or the C enum value for the category.
- my $categories = shift;
+ my $input_categories = shift;
my $allow_incompatible = shift // 0;
- $categories = [ $categories ] unless ref $categories;
- return unless locales_enabled(\$categories);
+ my @categories = (ref $input_categories) ? $input_categories->@* : $input_categories;
+ return unless locales_enabled(\@categories);
# Note, the subroutine call above converts the $categories into a form
# suitable for _trylocale().
return if ($^O =~ /^uwin/);
my @Locale;
- _trylocale("C", $categories, \@Locale, $allow_incompatible);
- _trylocale("POSIX", $categories, \@Locale, $allow_incompatible);
+ _trylocale("C", \@categories, \@Locale, $allow_incompatible);
+ _trylocale("POSIX", \@categories, \@Locale, $allow_incompatible);
if ($Config{d_has_C_UTF8} && $Config{d_has_C_UTF8} eq 'true') {
- _trylocale("C.UTF-8", $categories, \@Locale, $allow_incompatible);
+ _trylocale("C.UTF-8", \@categories, \@Locale, $allow_incompatible);
}
# There's no point in looking at anything more if we know that setlocale
return sort @Locale if defined $Config{d_setlocale_accepts_any_locale_name};
foreach (1..16) {
- _trylocale("ISO8859-$_", $categories, \@Locale, $allow_incompatible);
- _trylocale("iso8859$_", $categories, \@Locale, $allow_incompatible);
- _trylocale("iso8859-$_", $categories, \@Locale, $allow_incompatible);
- _trylocale("iso_8859_$_", $categories, \@Locale, $allow_incompatible);
- _trylocale("isolatin$_", $categories, \@Locale, $allow_incompatible);
- _trylocale("isolatin-$_", $categories, \@Locale, $allow_incompatible);
- _trylocale("iso_latin_$_", $categories, \@Locale, $allow_incompatible);
+ _trylocale("ISO8859-$_", \@categories, \@Locale, $allow_incompatible);
+ _trylocale("iso8859$_", \@categories, \@Locale, $allow_incompatible);
+ _trylocale("iso8859-$_", \@categories, \@Locale, $allow_incompatible);
+ _trylocale("iso_8859_$_", \@categories, \@Locale, $allow_incompatible);
+ _trylocale("isolatin$_", \@categories, \@Locale, $allow_incompatible);
+ _trylocale("isolatin-$_", \@categories, \@Locale, $allow_incompatible);
+ _trylocale("iso_latin_$_", \@categories, \@Locale, $allow_incompatible);
}
# Sanitize the environment so that we can run the external 'locale'
# locales will cause all IO hadles to default to (assume) utf8
next unless utf8::valid($_);
chomp;
- _trylocale($_, $categories, \@Locale, $allow_incompatible);
+ _trylocale($_, \@categories, \@Locale, $allow_incompatible);
}
close(LOCALES);
} elsif ($^O eq 'VMS'
opendir(LOCALES, "SYS\$I18N_LOCALE:");
while ($_ = readdir(LOCALES)) {
chomp;
- _trylocale($_, $categories, \@Locale, $allow_incompatible);
+ _trylocale($_, \@categories, \@Locale, $allow_incompatible);
}
close(LOCALES);
} elsif (($^O eq 'openbsd' || $^O eq 'bitrig' ) && -e '/usr/share/locale') {
opendir(LOCALES, '/usr/share/locale');
while ($_ = readdir(LOCALES)) {
chomp;
- _trylocale($_, $categories, \@Locale, $allow_incompatible);
+ _trylocale($_, \@categories, \@Locale, $allow_incompatible);
}
close(LOCALES);
} else { # Final fallback. Try our list of locales hard-coded here
}
# The rest of the locales are in this file.
- push @Data, <DATA>; close DATA;
+ state @my_data = <DATA>; close DATA if fileno DATA;
+ push @Data, @my_data;
foreach my $line (@Data) {
chomp $line;
unless defined $locale_name;
my @enc = _decode_encodings($encodings);
foreach my $loc (split(/ /, $locale_name)) {
- _trylocale($loc, $categories, \@Locale, $allow_incompatible);
+ _trylocale($loc, \@categories, \@Locale, $allow_incompatible);
foreach my $enc (@enc) {
- _trylocale("$loc.$enc", $categories, \@Locale,
+ _trylocale("$loc.$enc", \@categories, \@Locale,
$allow_incompatible);
}
$loc = lc $loc;
foreach my $enc (@enc) {
- _trylocale("$loc.$enc", $categories, \@Locale,
+ _trylocale("$loc.$enc", \@categories, \@Locale,
$allow_incompatible);
}
}
foreach my $lang (split(/ /, $language_codes)) {
- _trylocale($lang, $categories, \@Locale, $allow_incompatible);
+ _trylocale($lang, \@categories, \@Locale, $allow_incompatible);
foreach my $country (split(/ /, $country_codes)) {
my $lc = "${lang}_${country}";
- _trylocale($lc, $categories, \@Locale, $allow_incompatible);
+ _trylocale($lc, \@categories, \@Locale, $allow_incompatible);
foreach my $enc (@enc) {
- _trylocale("$lc.$enc", $categories, \@Locale,
+ _trylocale("$lc.$enc", \@categories, \@Locale,
$allow_incompatible);
}
my $lC = "${lang}_\U${country}";
- _trylocale($lC, $categories, \@Locale, $allow_incompatible);
+ _trylocale($lC, \@categories, \@Locale, $allow_incompatible);
foreach my $enc (@enc) {
- _trylocale("$lC.$enc", $categories, \@Locale,
+ _trylocale("$lC.$enc", \@categories, \@Locale,
$allow_incompatible);
}
}
https://perl5.git.perl.org / perl5.git / blobdiff