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t/loc_tools.pl: Special case openbsd
[perl5.git] / t / loc_tools.pl
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73fc293b 1# Common tools for test files files to find the locales which exist on the
13022195 2# system. Caller should have verified that this isn't miniperl before calling
abfe20b2 3# the functions.
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4
5# Note that it's okay that some languages have their native names
6# capitalized here even though that's not "right". They are lowercased
7# anyway later during the scanning process (and besides, some clueless
8# vendor might have them capitalized erroneously anyway).
9
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10# Functions whose names begin with underscore are internal helper functions
11# for this file, and are not to be used by outside callers.
12
99617871 13use Config;
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14use strict;
15
a274778c 16eval { require POSIX; import POSIX 'locale_h'; };
e1f89022 17my $has_locale_h = ! $@;
a274778c 18
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19my @known_categories = ( qw(LC_ALL LC_COLLATE LC_CTYPE LC_MESSAGES LC_MONETARY
20 LC_NUMERIC LC_TIME LC_ADDRESS LC_IDENTIFICATION
21 LC_MEASUREMENT LC_PAPER LC_TELEPHONE));
22my @platform_categories;
23
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24# LC_ALL can be -1 on some platforms. And, in fact the implementors could
25# legally use any integer to represent any category. But it makes the most
26# sense for them to have used small integers. Below, we create new locale
27# numbers for ones missing from this machine. We make them very negative,
28# hopefully more negative than anything likely to be a valid category on the
29# platform, but also below is a check to be sure that our guess is valid.
30my $max_bad_category_number = -1000000;
31
32# Initialize this hash so that it looks like e.g.,
33# 6 => 'CTYPE',
34# where 6 is the value of &POSIX::LC_CTYPE
35my %category_name;
cd1f7080 36my %category_number;
86e85139 37if ($has_locale_h) {
6fa6c80b 38 my $number_for_missing_category = $max_bad_category_number;
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39 foreach my $name (@known_categories) {
40 my $number = eval "&POSIX::$name";
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41 if ($@) {
42 # Use a negative number (smaller than any legitimate category
43 # number) if the platform doesn't support this category, so we
44 # have an entry for all the ones that might be specified in calls
45 # to us.
46 $number = $number_for_missing_category-- if $@;
47 }
48 elsif ( $number !~ / ^ -? \d+ $ /x
49 || $number <= $max_bad_category_number)
50 {
51 # We think this should be an int. And it has to be larger than
52 # any of our synthetic numbers.
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53 die "Unexpected locale category number '$number' for $name"
54 }
55 else {
56 push @platform_categories, $name;
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57 }
58
83858d2d 59 $name =~ s/LC_//;
6fa6c80b 60 $category_name{$number} = "$name";
cd1f7080 61 $category_number{$name} = $number;
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62 }
63}
64
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65sub _my_diag($) {
66 my $message = shift;
67 if (defined &main::diag) {
68 diag($message);
69 }
70 else {
71 local($\, $", $,) = (undef, ' ', '');
72 print STDERR $message, "\n";
73 }
74}
75
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76sub _my_fail($) {
77 my $message = shift;
78 if (defined &main::fail) {
79 fail($message);
80 }
81 else {
82 local($\, $", $,) = (undef, ' ', '');
83 print "not ok 0 $message\n";
84 }
85}
86
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87sub _trylocale ($$$$) { # For use only by other functions in this file!
88
89 # Adds the locale given by the first parameter to the list given by the
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90 # 3rd iff the platform supports the locale in each of the category numbers
91 # given by the 2nd parameter, which is either a single category or a
774ee090 92 # reference to a list of categories. The list MUST be sorted so that
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93 # CTYPE is first, COLLATE is last unless ALL is present, in which case
94 # that comes after COLLATE. This is because locale.c detects bad locales
95 # only with CTYPE, and COLLATE on some platforms can core dump if it is a
96 # bad locale.
97 #
98 # The 4th parameter is true if to accept locales that aren't apparently
99 # fully compatible with Perl.
bb31ec6a 100
73fc293b 101 my $locale = shift;
9b0711ee 102 my $categories = shift;
73fc293b 103 my $list = shift;
2c6c88ec 104 my $allow_incompatible = shift;
f079f9b7 105
162eb2b8 106 return if ! $locale || grep { $locale eq $_ } @$list;
9b0711ee 107
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108 # This is a toy (pig latin) locale that is not fully implemented on some
109 # systems
110 return if $locale =~ / ^ pig $ /ix;
111
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112 # As of 6.3, this platform's locale handling is basically broken. khw
113 # filed a bug report (no ticket number was returned), and it is supposedly
114 # going to change in a future release, so the statements here below sunset
115 # for any larger version, at which point this may start failing and have
116 # to be revisited.
117 #
118 # Given a legal individual category, basically whatever you set the locale
119 # to, the return from setlocale() indicates that it has taken effect, even
120 # if it hasn't. However, the return from querying LC_ALL won't reflect
121 # this.
122 if ($Config{osname} =~ /openbsd/i && $locale !~ / ^ (?: C | POSIX ) $/ix) {
123 my ($major, $minor) = $Config{osvers} =~ / ^ ( \d+ ) \. ( \d+ ) /ax;
124 return if ! defined $major || ! defined $minor
125 || $major < 6 || ($major == 6 && $minor <= 3);
126 }
127
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128 $categories = [ $categories ] unless ref $categories;
129
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130 my $badutf8 = 0;
131 my $plays_well = 1;
132
133 use warnings 'locale';
134
135 local $SIG{__WARN__} = sub {
973072b2 136 $badutf8 = 1 if grep { /Malformed UTF-8/ } @_;
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137 $plays_well = 0 if grep {
138 /Locale .* may not work well(?#
ef5d49f0 139 )|The Perl program will use the expected meanings/i
1649de0c 140 } @_;
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141 };
142
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143 # Incompatible locales aren't warned about unless using locales.
144 use locale;
145
9b0711ee 146 foreach my $category (@$categories) {
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147 die "category '$category' must instead be a number"
148 unless $category =~ / ^ -? \d+ $ /x;
149
9b0711ee 150 return unless setlocale($category, $locale);
caf06cdc 151 last if $badutf8 || ! $plays_well;
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152 }
153
154 if ($badutf8) {
13022195 155 _my_fail("Verify locale name doesn't contain malformed utf8");
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156 return;
157 }
caf06cdc 158 push @$list, $locale if $plays_well || $allow_incompatible;
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159}
160
bb31ec6a 161sub _decode_encodings { # For use only by other functions in this file!
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162 my @enc;
163
164 foreach (split(/ /, shift)) {
165 if (/^(\d+)$/) {
166 push @enc, "ISO8859-$1";
167 push @enc, "iso8859$1"; # HP
168 if ($1 eq '1') {
169 push @enc, "roman8"; # HP
170 }
171 push @enc, $_;
172 push @enc, "$_.UTF-8";
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173 push @enc, "$_.65001"; # Windows UTF-8
174 push @enc, "$_.ACP"; # Windows ANSI code page
175 push @enc, "$_.OCP"; # Windows OEM code page
cf34c81f 176 push @enc, "$_.1252"; # Windows
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177 }
178 }
179 if ($^O eq 'os390') {
180 push @enc, qw(IBM-037 IBM-819 IBM-1047);
181 }
182 push @enc, "UTF-8";
d646bffe 183 push @enc, "65001"; # Windows UTF-8
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184
185 return @enc;
186}
187
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188sub valid_locale_categories() {
189 # Returns a list of the locale categories (expressed as strings, like
190 # "LC_ALL) known to this program that are available on this platform.
191
192 return @platform_categories;
193}
194
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195sub locales_enabled(;$) {
196 # Returns 0 if no locale handling is available on this platform; otherwise
197 # 1.
198 #
199 # The optional parameter is a reference to a list of individual POSIX
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200 # locale categories. If any of the individual categories specified by the
201 # optional parameter is all digits (and an optional leading minus), it is
202 # taken to be the C enum for the category (e.g., &POSIX::LC_CTYPE).
203 # Otherwise it should be a string name of the category, like 'LC_TIME'.
204 # The initial 'LC_' is optional. It is a fatal error to call this with
83858d2d 205 # something that isn't a known category to this file.
128e4113 206 #
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207 # This optional parameter denotes which POSIX locale categories must be
208 # available on the platform. If any aren't available, this function
209 # returns 0; otherwise it returns 1 and changes the list for the caller so
210 # that any category names are converted into their equivalent numbers, and
211 # sorts it to match the expectations of _trylocale.
212 #
213 # It is acceptable for the second parameter to be just a simple scalar
214 # denoting a single category (either name or number). No conversion into
215 # a number is done in this case.
128e4113 216
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217 return 0 unless $Config{d_setlocale}
218 # I (khw) cargo-culted the '?' in the pattern on the
219 # next line.
a274778c 220 && $Config{ccflags} !~ /\bD?NO_LOCALE\b/
cfe9fa91 221 && $has_locale_h;
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222
223 # Done with the global possibilities. Now check if any passed in category
224 # is disabled.
cd1f7080 225
128e4113 226 my $categories_ref = shift;
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227 my $return_categories_numbers = 0;
228 my @categories_numbers;
229 my $has_LC_ALL = 0;
230 my $has_LC_COLLATE = 0;
231
e6965c14 232 if (defined $categories_ref) {
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233 my @local_categories_copy;
234
235 if (ref $categories_ref) {
236 @local_categories_copy = @$$categories_ref;
237 $return_categories_numbers = 1;
238 }
239 else { # Single category passed in
240 @local_categories_copy = $categories_ref;
241 }
242
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243 for my $category_name_or_number (@local_categories_copy) {
244 my $name;
245 my $number;
246 if ($category_name_or_number =~ / ^ -? \d+ $ /x) {
247 $number = $category_name_or_number;
248 die "Invalid locale category number '$number'"
249 unless grep { $number == $_ } keys %category_name;
250 $name = $category_name{$number};
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251 }
252 else {
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253 $name = $category_name_or_number;
254 $name =~ s/ ^ LC_ //x;
255 foreach my $trial (keys %category_name) {
256 if ($category_name{$trial} eq $name) {
257 $number = $trial;
258 last;
259 }
260 }
261 die "Invalid locale category name '$name'"
262 unless defined $number;
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263 }
264
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265 return 0 if $number <= $max_bad_category_number
266 || $Config{ccflags} =~ /\bD?NO_LOCALE_$name\b/;
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267
268 eval "defined &POSIX::LC_$name";
269 return 0 if $@;
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270
271 if ($return_categories_numbers) {
272 if ($name eq 'CTYPE') {
273 unshift @categories_numbers, $number; # Always first
274 }
275 elsif ($name eq 'ALL') {
276 $has_LC_ALL = 1;
277 }
278 elsif ($name eq 'COLLATE') {
279 $has_LC_COLLATE = 1;
280 }
281 else {
282 push @categories_numbers, $number;
283 }
284 }
285 }
286 }
287
288 if ($return_categories_numbers) {
289
290 # COLLATE comes after all other locales except ALL, which comes last
291 if ($has_LC_COLLATE) {
292 push @categories_numbers, $category_number{'COLLATE'};
128e4113 293 }
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294 if ($has_LC_ALL) {
295 push @categories_numbers, $category_number{'ALL'};
296 }
297 $$categories_ref = \@categories_numbers;
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298 }
299
300 return 1;
301}
302
303
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304sub find_locales ($;$) {
305
306 # Returns an array of all the locales we found on the system. If the
307 # optional 2nd parameter is non-zero, the list includes all found locales;
308 # otherwise it is restricted to those locales that play well with Perl, as
309 # far as we can easily determine.
310 #
311 # The first parameter is either a single locale category or a reference to
312 # a list of categories to find valid locales for it (or in the case of
313 # multiple) for all of them. Each category can be a name (like 'LC_ALL'
314 # or simply 'ALL') or the C enum value for the category.
315
9b0711ee 316 my $categories = shift;
2c6c88ec 317 my $allow_incompatible = shift // 0;
73fc293b 318
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319 $categories = [ $categories ] unless ref $categories;
320 return unless locales_enabled(\$categories);
321
322 # Note, the subroutine call above converts the $categories into a form
323 # suitable for _trylocale().
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324
325 # Visual C's CRT goes silly on strings of the form "en_US.ISO8859-1"
326 # and mingw32 uses said silly CRT
327 # This doesn't seem to be an issue any more, at least on Windows XP,
328 # so re-enable the tests for Windows XP onwards.
329 my $winxp = ($^O eq 'MSWin32' && defined &Win32::GetOSVersion &&
330 join('.', (Win32::GetOSVersion())[1..2]) >= 5.1);
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331 return if ((($^O eq 'MSWin32' && !$winxp) || $^O eq 'NetWare')
332 && $Config{cc} =~ /^(cl|gcc|g\+\+|ici)/i);
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333
334 # UWIN seems to loop after taint tests, just skip for now
128e4113 335 return if ($^O =~ /^uwin/);
d369fd5b 336
e1f89022 337 my @Locale;
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338 _trylocale("C", $categories, \@Locale, $allow_incompatible);
339 _trylocale("POSIX", $categories, \@Locale, $allow_incompatible);
82b1f618 340 foreach (1..16) {
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341 _trylocale("ISO8859-$_", $categories, \@Locale, $allow_incompatible);
342 _trylocale("iso8859$_", $categories, \@Locale, $allow_incompatible);
343 _trylocale("iso8859-$_", $categories, \@Locale, $allow_incompatible);
344 _trylocale("iso_8859_$_", $categories, \@Locale, $allow_incompatible);
345 _trylocale("isolatin$_", $categories, \@Locale, $allow_incompatible);
346 _trylocale("isolatin-$_", $categories, \@Locale, $allow_incompatible);
347 _trylocale("iso_latin_$_", $categories, \@Locale, $allow_incompatible);
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348 }
349
350 # Sanitize the environment so that we can run the external 'locale'
351 # program without the taint mode getting grumpy.
352
353 # $ENV{PATH} is special in VMS.
8b76dc1d 354 delete local $ENV{PATH} if $^O ne 'VMS' or $Config{d_setenv};
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355
356 # Other subversive stuff.
8b76dc1d 357 delete local @ENV{qw(IFS CDPATH ENV BASH_ENV)};
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358
359 if (-x "/usr/bin/locale"
1ae6ead9 360 && open(LOCALES, '-|', "/usr/bin/locale -a 2>/dev/null"))
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361 {
362 while (<LOCALES>) {
363 # It seems that /usr/bin/locale steadfastly outputs 8 bit data, which
364 # ain't great when we're running this testPERL_UNICODE= so that utf8
365 # locales will cause all IO hadles to default to (assume) utf8
366 next unless utf8::valid($_);
367 chomp;
2c6c88ec 368 _trylocale($_, $categories, \@Locale, $allow_incompatible);
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369 }
370 close(LOCALES);
371 } elsif ($^O eq 'VMS'
372 && defined($ENV{'SYS$I18N_LOCALE'})
373 && -d 'SYS$I18N_LOCALE')
374 {
375 # The SYS$I18N_LOCALE logical name search list was not present on
376 # VAX VMS V5.5-12, but was on AXP && VAX VMS V6.2 as well as later versions.
377 opendir(LOCALES, "SYS\$I18N_LOCALE:");
378 while ($_ = readdir(LOCALES)) {
379 chomp;
2c6c88ec 380 _trylocale($_, $categories, \@Locale, $allow_incompatible);
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381 }
382 close(LOCALES);
383 } elsif (($^O eq 'openbsd' || $^O eq 'bitrig' ) && -e '/usr/share/locale') {
384
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385 # OpenBSD doesn't have a locale executable, so reading
386 # /usr/share/locale is much easier and faster than the last resort
387 # method.
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388
389 opendir(LOCALES, '/usr/share/locale');
390 while ($_ = readdir(LOCALES)) {
391 chomp;
2c6c88ec 392 _trylocale($_, $categories, \@Locale, $allow_incompatible);
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393 }
394 close(LOCALES);
395 } else { # Final fallback. Try our list of locales hard-coded here
396
397 # This is going to be slow.
398 my @Data;
399
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400 # Locales whose name differs if the utf8 bit is on are stored in these
401 # two files with appropriate encodings.
402 my $data_file = ($^H & 0x08 || (${^OPEN} || "") =~ /:utf8/)
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403 ? _source_location() . "/lib/locale/utf8"
404 : _source_location() . "/lib/locale/latin1";
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405 if (-e $data_file) {
406 @Data = do $data_file;
407 }
408 else {
409 _my_diag(__FILE__ . ":" . __LINE__ . ": '$data_file' doesn't exist");
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410 }
411
412 # The rest of the locales are in this file.
413 push @Data, <DATA>;
414
415 foreach my $line (@Data) {
416 my ($locale_name, $language_codes, $country_codes, $encodings) =
417 split /:/, $line;
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418 _my_diag(__FILE__ . ":" . __LINE__ . ": Unexpected syntax in '$line'")
419 unless defined $locale_name;
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420 my @enc = _decode_encodings($encodings);
421 foreach my $loc (split(/ /, $locale_name)) {
2c6c88ec 422 _trylocale($loc, $categories, \@Locale, $allow_incompatible);
73fc293b 423 foreach my $enc (@enc) {
f079f9b7 424 _trylocale("$loc.$enc", $categories, \@Locale,
2c6c88ec 425 $allow_incompatible);
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426 }
427 $loc = lc $loc;
428 foreach my $enc (@enc) {
f079f9b7 429 _trylocale("$loc.$enc", $categories, \@Locale,
2c6c88ec 430 $allow_incompatible);
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431 }
432 }
433 foreach my $lang (split(/ /, $language_codes)) {
2c6c88ec 434 _trylocale($lang, $categories, \@Locale, $allow_incompatible);
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435 foreach my $country (split(/ /, $country_codes)) {
436 my $lc = "${lang}_${country}";
2c6c88ec 437 _trylocale($lc, $categories, \@Locale, $allow_incompatible);
73fc293b 438 foreach my $enc (@enc) {
f079f9b7 439 _trylocale("$lc.$enc", $categories, \@Locale,
2c6c88ec 440 $allow_incompatible);
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441 }
442 my $lC = "${lang}_\U${country}";
2c6c88ec 443 _trylocale($lC, $categories, \@Locale, $allow_incompatible);
73fc293b 444 foreach my $enc (@enc) {
f079f9b7 445 _trylocale("$lC.$enc", $categories, \@Locale,
2c6c88ec 446 $allow_incompatible);
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447 }
448 }
449 }
450 }
451 }
452
453 @Locale = sort @Locale;
454
455 return @Locale;
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456}
457
ab8b8bcc 458sub is_locale_utf8 ($) { # Return a boolean as to if core Perl thinks the input
9b0711ee 459 # is a UTF-8 locale
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460
461 # On z/OS, even locales marked as UTF-8 aren't.
462 return 0 if ord "A" != 65;
463
cfe9fa91 464 return 0 unless locales_enabled('LC_CTYPE');
21732d5c 465
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466 my $locale = shift;
467
31f05a37 468 use locale;
f079f9b7 469 no warnings 'locale'; # We may be trying out a weird locale
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470
471 my $save_locale = setlocale(&POSIX::LC_CTYPE());
472 if (! $save_locale) {
473 ok(0, "Verify could save previous locale");
474 return 0;
475 }
476
477 if (! setlocale(&POSIX::LC_CTYPE(), $locale)) {
478 ok(0, "Verify could setlocale to $locale");
479 return 0;
480 }
481
482 my $ret = 0;
483
484 # Use an op that gives different results for UTF-8 than any other locale.
485 # If a platform has UTF-8 locales, there should be at least one locale on
486 # most platforms with UTF-8 in its name, so if there is a bug in the op
487 # giving a false negative, we should get a failure for those locales as we
488 # go through testing all the locales on the platform.
489 if (CORE::fc(chr utf8::unicode_to_native(0xdf)) ne "ss") {
490 if ($locale =~ /UTF-?8/i) {
491 ok (0, "Verify $locale with UTF-8 in name is a UTF-8 locale");
492 }
493 }
494 else {
495 $ret = 1;
496 }
497
498 die "Couldn't restore locale '$save_locale'"
499 unless setlocale(&POSIX::LC_CTYPE(), $save_locale);
500
501 return $ret;
ab8b8bcc
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502}
503
c1d1e689 504sub find_utf8_ctype_locale (;$) { # Return the name of a locale that core Perl
9b0711ee
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505 # thinks is a UTF-8 LC_CTYPE locale.
506 # Optional parameter is a reference to a
507 # list of locales to try; if omitted, this
508 # tries all locales it can find on the
509 # platform
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510 return unless locales_enabled('LC_CTYPE');
511
ab8b8bcc 512 my $locales_ref = shift;
21732d5c 513
ab8b8bcc 514 if (! defined $locales_ref) {
21732d5c 515
2c6c88ec 516 my @locales = find_locales(&POSIX::LC_CTYPE());
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517 $locales_ref = \@locales;
518 }
519
520 foreach my $locale (@$locales_ref) {
521 return $locale if is_locale_utf8($locale);
522 }
523
524 return;
525}
526
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527# returns full path to the directory containing the current source
528# file, inspired by mauke's Dir::Self
529sub _source_location {
530 require File::Spec;
531
532 my $caller_filename = (caller)[1];
533
b3c872eb 534 my $loc = File::Spec->rel2abs(
9969000e 535 File::Spec->catpath(
b3c872eb 536 (File::Spec->splitpath($caller_filename))[0, 1], ''
9969000e
TK
537 )
538 );
b3c872eb
TK
539
540 return ($loc =~ /^(.*)$/)[0]; # untaint
9969000e
TK
541}
542
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5431
544
545# Format of data is: locale_name, language_codes, country_codes, encodings
546__DATA__
547Afrikaans:af:za:1 15
548Arabic:ar:dz eg sa:6 arabic8
549Brezhoneg Breton:br:fr:1 15
550Bulgarski Bulgarian:bg:bg:5
551Chinese:zh:cn tw:cn.EUC eucCN eucTW euc.CN euc.TW Big5 GB2312 tw.EUC
552Hrvatski Croatian:hr:hr:2
553Cymraeg Welsh:cy:cy:1 14 15
554Czech:cs:cz:2
555Dansk Danish:da:dk:1 15
556Nederlands Dutch:nl:be nl:1 15
557English American British:en:au ca gb ie nz us uk zw:1 15 cp850
558Esperanto:eo:eo:3
559Eesti Estonian:et:ee:4 6 13
560Suomi Finnish:fi:fi:1 15
561Flamish::fl:1 15
562Deutsch German:de:at be ch de lu:1 15
563Euskaraz Basque:eu:es fr:1 15
564Galego Galician:gl:es:1 15
565Ellada Greek:el:gr:7 g8
566Frysk:fy:nl:1 15
567Greenlandic:kl:gl:4 6
568Hebrew:iw:il:8 hebrew8
569Hungarian:hu:hu:2
570Indonesian:id:id:1 15
571Gaeilge Irish:ga:IE:1 14 15
572Italiano Italian:it:ch it:1 15
573Nihongo Japanese:ja:jp:euc eucJP jp.EUC sjis
574Korean:ko:kr:
575Latine Latin:la:va:1 15
576Latvian:lv:lv:4 6 13
577Lithuanian:lt:lt:4 6 13
578Macedonian:mk:mk:1 15
579Maltese:mt:mt:3
580Moldovan:mo:mo:2
581Norsk Norwegian:no no\@nynorsk nb nn:no:1 15
582Occitan:oc:es:1 15
583Polski Polish:pl:pl:2
584Rumanian:ro:ro:2
585Russki Russian:ru:ru su ua:5 koi8 koi8r KOI8-R koi8u cp1251 cp866
586Serbski Serbian:sr:yu:5
587Slovak:sk:sk:2
588Slovene Slovenian:sl:si:2
589Sqhip Albanian:sq:sq:1 15
590Svenska Swedish:sv:fi se:1 15
591Thai:th:th:11 tis620
592Turkish:tr:tr:9 turkish8
593Yiddish:yi::1 15