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lc.t
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lc.t
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use v6;
use Test;
plan 18;
# L<S32::Str/Str/lc>
is(lc("hello world"), "hello world", "lowercasing string which is already lowercase");
is(lc("Hello World"), "hello world", "simple lc test");
is(lc(""), "", "empty string");
is(lc("ÅÄÖ"), "åäö", "some finnish non-ascii chars");
is(lc("ÄÖÜ"), "äöü", "lc of German Umlauts");
is(lc("ÓÒÚÙ"), "óòúù", "accented chars");
is(lc('A'..'C'), "a b c", "lowercasing char-range");
{
$_ = "Hello World";
my $x = .lc;
is($x, "hello world", 'lc uses $_ as default');
}
{ # test invocant syntax for lc
my $x = "Hello World";
is($x.lc, "hello world", '$x.lc works');
is($x, 'Hello World', 'Invocant unchanged');
is("Hello World".lc, "hello world", '"Hello World".lc works');
}
is("ÁÉÍÖÜÓŰŐÚ".lc, "áéíöüóűőú", ".lc on Hungarian vowels");
# https://en.wikipedia.org/wiki/Title_case#Special_cases
# "The Greek letter Σ has two different lowercase forms: "ς" in word-final
# position and "σ" elsewhere."
#?niecza 3 todo 'advanced Unicode wizardry'
is 'ΣΣΣ'.lc, 'σσς', 'lower-casing of greek Sigma respects word-final special case (EOS)';
is 'ΣΣΣ.'.lc, 'σσς.', 'lower-casing of greek Sigma respects word-final special case (.)';
is 'ΣΣΣ '.lc, 'σσς ', 'lower-casing of greek Sigma respects word-final special case (ws)';
is 'Σ'.lc, 'σ', 'final sigma does not apply if string is only an uppercase sigma';
is 'The Σ is a Sigma'.lc, 'the σ is a sigma', 'final sigma does not apply if only letter in word (ws)';
is 'Sigma looks like Σ.'.lc, 'sigma looks like σ.', 'final sigma does not apply if only letter in word (.)';
# vim: ft=perl6