3 # These tests are in a separate file, because they use fresh_perl_is()
6 # The mb* functions use the "underlying locale" that is not affected by
7 # the Perl one. So we run the tests in a separate "fresh_perl" process
8 # with the correct LC_CTYPE set in the environment.
11 require Config; import Config;
12 if ($^O ne 'VMS' and $Config{'extensions'} !~ /\bPOSIX\b/) {
16 unshift @INC, "../../t";
17 require 'loc_tools.pl';
18 require 'charset_tools.pl';
27 skip("mblen() not present", 4) unless $Config{d_mblen};
29 is(&POSIX::mblen("a", &POSIX::MB_CUR_MAX), 1, 'mblen() basically works');
31 skip("LC_CTYPE locale support not available", 3)
32 unless locales_enabled('LC_CTYPE');
34 my $utf8_locale = find_utf8_ctype_locale();
35 skip("no utf8 locale available", 3) unless $utf8_locale;
37 # Here we need to influence LC_CTYPE, but it's not enough to just
38 # set this because LC_ALL could override it. It's also not enough
39 # to delete LC_ALL because it could be used to override other
40 # variables such as LANG in the underlying test environment.
41 # Continue to set LC_CTYPE just in case...
42 local $ENV{LC_CTYPE} = $utf8_locale;
43 local $ENV{LC_ALL} = $utf8_locale;
46 'use POSIX; print &POSIX::MB_CUR_MAX',
47 qr/[4-6]/, {}, 'MB_CUR_MAX is at least 4 in a UTF-8 locale');
50 my ($major, $minor, $rest) = $Config{osvers} =~ / (\d+) \. (\d+) .* /x;
51 skip("mblen() broken (at least for c.utf8) on early HP-UX", 2)
52 if $Config{osname} eq 'hpux'
53 && $major < 11 || ($major == 11 && $minor < 31);
55 'use POSIX; print &POSIX::mblen("'
56 . I8_to_native("\x{c3}\x{28}")
58 -1, {}, 'mblen() recognizes invalid multibyte characters');
61 'use POSIX; print &POSIX::mblen("\N{GREEK SMALL LETTER SIGMA}", 2)',
62 2, {}, 'mblen() works on UTF-8 characters');