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use v6;
use Test;
plan 189;
my $foo = "FOO";
my $bar = "BAR";
=begin description
Tests quoting constructs as defined in L<S02/Literals>
Note that non-ASCII tests are kept in quoting-unicode.t
=todo
* q:b and other interpolation levels (half-done)
* meaningful quotations (qx, rx, etc)
* interpolation of scalar, array, hash, function and closure syntaxes
* q : a d verb s // parsing
=end description
# L<S02/Bracketing Characters/bidirectional mirrorings>
{
my $s = q{ foo bar };
is $s, ' foo bar ', 'string using q{}';
}
{
is q{ { foo } }, ' { foo } ', 'Can nest curlies in q{ .. }';
is q{{ab}}, 'ab', 'Unnested single curlies in q{{...}}';
is q{{ fo} }}, ' fo} ', 'Unnested single curlies in q{{...}}';
is q{{ {{ } }} }}, ' {{ } }} ', 'Can nest double curlies in q{{...}}';
}
{
is q{\n}, '\n', 'q{..} do not interpolate \n';
ok q{\n}.chars == 2, 'q{..} do not interpolate \n';
is q{$x}, '$x', 'q{..} do not interpolate scalars';
ok q{$x}.chars == 2, 'q{..} do not interpolate scalars';
}
{
is Q{\n}, '\n', 'Q{..} do not interpolate \n';
ok Q{\n}.chars == 2, 'Q{..} do not interpolate \n';
is Q{$x}, '$x', 'Q{..} do not interpolate scalars';
ok Q{$x}.chars == 2, 'Q{..} do not interpolate scalars';
is Q {\\}, '\\\\', 'Q {..} quoting';
}
{
ok Q{\\}.chars == 2, 'Q{..} do not interpolate backslashes';
}
# L<S02/Adverbs on quotes/":q" ":single" "Interpolate \\, \q and \'">
{
my @q = ();
@q = (q/$foo $bar/);
is(+@q, 1, 'q// is singular');
is(@q[0], '$foo $bar', 'single quotes are non interpolating');
};
{ # and its complement ;-)
my @q = ();
@q = '$foo $bar';
is(+@q, 1, "'' is singular");
is(@q[0], '$foo $bar', 'and did not interpolate either');
};
# L<S02/Delimiters of quoting forms/That is () have no special significance>
# non interpolating single quotes with nested parens
{
my @q = ();
@q = (q (($foo $bar)));
is(+@q, 1, 'q (()) is singular');
is(@q[0], '$foo $bar', 'and nests parens appropriately');
};
# L<S02/Delimiters of quoting forms/That is () have no special significance>
{ # non interpolating single quotes with nested parens
my @q = ();
@q = (q ( ($foo $bar)));
is(+@q, 1, 'q () is singular');
is(@q[0], ' ($foo $bar)', 'and nests parens appropriately');
};
# L<S02/Delimiters of quoting forms/Which is mandatory for parens>
{ # q() is bad
my @q;
sub q { @_ }
@q = q($foo,$bar);
is(+@q, 2, 'q() is always sub call');
};
# L<S02/C<Q> forms/:q>
{ # adverb variation
my @q = ();
@q = (Q:q/$foo $bar/);
is(+@q, 1, "Q:q// is singular");
is(@q[0], '$foo $bar', "and again, non interpolating");
};
{ # nested brackets
my @q = ();
@q = (q[ [$foo $bar]]);
is(+@q, 1, 'q[] is singular');
is(@q[0], ' [$foo $bar]', 'and nests brackets appropriately');
};
{ # nested brackets
my @q = ();
@q = (q[[$foo $bar]]);
is(+@q, 1, 'q[[]] is singular');
is(@q[0], '$foo $bar', 'and nests brackets appropriately');
};
# L<S02/C<Q> forms/qq:>
{ # interpolating quotes
my @q = ();
@q = qq/$foo $bar/;
is(+@q, 1, 'qq// is singular');
is(@q[0], 'FOO BAR', 'variables were interpolated');
};
{ # "" variation
my @q = ();
@q = "$foo $bar";
is(+@q, 1, '"" is singular');
is(@q[0], "FOO BAR", '"" interpolates');
};
# L<S02/C<Q> forms/:qq>
{ # adverb variation
my @q = ();
@q = Q:qq/$foo $bar/;
is(+@q, 1, "Q:qq// is singular");
is(@q[0], "FOO BAR", "blah blah interp");
};
# L<S02/Interpolating into a single-quoted string/using the \qq>
{ # \qq[] constructs interpolate in q[]
my ( @q1, @q2, @q3, @q4 ) = ();
@q1 = q[$foo \qq[$bar]];
is(+@q1, 1, "q[...\\qq[...]...] is singular");
is(@q1[0], '$foo BAR', "and interpolates correctly");
@q2 = '$foo \qq[$bar]';
is(+@q2, 1, "'...\\qq[...]...' is singular");
is(@q2[0], '$foo BAR', "and interpolates correctly");
@q3 = q[$foo \q:s{$bar}];
is(+@q3, 1, 'q[...\\q:s{...}...] is singular');
is(@q3[0], '$foo BAR', "and interpolates correctly");
@q4 = q{$foo \q/$bar/};
is(+@q4, 1, 'q{...\\q/.../...} is singular');
is(@q4[0], '$foo $bar', "and interpolates correctly");
}
# quote with \0 as delimiters
{
is EVAL("(q\0foo bar\0)"), 'foo bar', 'OK';
}
{ # traditional quote word
my @q = ();
@q = (qw/$foo $bar/);
is(+@q, 2, "qw// is plural");
is(@q[0], '$foo', "and non interpolating");
is(@q[1], '$bar', "...");
};
# L<S02/Quoting forms/quote operator now has a bracketed form>
{ # angle brackets
my @q = ();
@q = <$foo $bar>;
is(+@q, 2, "<> behaves the same way");
is(@q[0], '$foo', 'for interpolation too');
is(@q[1], '$bar', '...');
};
{ # angle brackets
my @q = ();
@q = < $foo $bar >;
is(+@q, 2, "<> behaves the same way, with leading (and trailing) whitespace");
is(@q[0], '$foo', 'for interpolation too');
is(@q[1], '$bar', '...');
};
{ # adverb variation
my @q = ();
@q = (q:w/$foo $bar/);
is(+@q, 2, "q:w// is like <>");
is(@q[0], '$foo', "...");
is(@q[1], '$bar', "...");
};
{ # whitespace sep aration does not break quote constructor
# L<S02/Whitespace before adverbs/Whitespace is allowed between the "q" and its adverb: q :w /.../.>
my @q = ();
@q = (q :w /$foo $bar/);
is(+@q, 2, "q :w // is the same as q:w//");
is(@q[0], '$foo', "...");
is(@q[1], '$bar', "...");
};
{ # qq:w,Interpolating quote constructor with words adverb
# L<S02/Adverbs on quotes/"Split result on words (no quote protection)">
my (@q1, @q2) = ();
@q1 = qq:w/$foo "gorch $bar"/;
@q2 = qq:words/$foo "gorch $bar"/;
is(+@q1, 3, 'qq:w// correct number of elements');
is(+@q2, 3, 'qq:words correct number of elements');
is(~@q1, 'FOO "gorch BAR"', "explicit quote word interpolates");
is(~@q2, 'FOO "gorch BAR"', "long form output is the same as the short");
};
#?niecza todo
{ # qq:ww, interpolating L<S02/Literals/double angles do interpolate>
# L<S02/Forcing item context/"implicit split" "shell-like fashion">
my (@q1, @q2, @q3, @q4) = ();
@q1 = qq:ww/$foo "gorch $bar"/;
@q2 = «$foo "gorch $bar"»; # french
@q3 = <<$foo "gorch $bar">>; # texas
@q4 = qq:quotewords/$foo "gorch $bar"/; # long
is(+@q1, 2, 'qq:ww// correct number of elements');
is(+@q2, 2, 'french double angle');
is(+@q3, 2, 'texas double angle');
is(+@q4, 2, 'long form');
is(~@q1, 'FOO gorch BAR', "explicit quote word interpolates");
is(~@q2, 'FOO gorch BAR', "output is the same as french");
# L<S02/Adverbs on quotes/"the built-in «...» quoter automatically does interpolation equivalent to qq:ww/.../">
is(~@q3, 'FOO gorch BAR', ", texas quotes");
is(~@q4, 'FOO gorch BAR', ", and long form");
}
{
is (try EVAL "« one #`[[[comment]]] two »"), "one two", "«» handles embedded comments";
is (try EVAL "« one #`«comment» two »"), "one two", "«» handles embedded comments containing french quotes";
is (try EVAL "<< one #`<<comment>> two >>"), "one two", "<<>> handles embedded comments containing texas quotes";
is (try EVAL "« one #comment\n two »"), "one two", "«» handles line-end comments";
}
{
my $rt65654 = 'two words';
is «a $rt65654.flat.elems, 4, 'interpolate variable with spaces (French)';
is <<a $rt65654 z>>.flat.elems, 4, 'interpolate variable with spaces (Texas)';
}
#?niecza todo
{
#L<S02/Forcing item context/"relationship" "single quotes" "double angles">
my ($x, $y) = <a b>;
ok$x $y» eq <a b>, "«$x $y» interpolation works correctly");
};
# L<S02/Forcing item context/respects quotes in a shell-like fashion>
{ # qw, interpolating, shell quoting
my (@q1, @q2) = ();
my $gorch = "foo bar";
@q1 = «$foo $gorch $bar»;
is(+@q1, 4, "4 elements in unquoted «» list");
is(@q1[2], "bar", '$gorch was exploded');
is(@q1[3], "BAR", '$bar was interpolated');
@q2 = «$foo "$gorch" '$bar'»;
#?niecza 3 todo
is(+@q2, 3, "3 elements in sub quoted «» list");
is(@q2[1], $gorch, 'second element is both parts of $gorch, interpolated');
is(@q2[2], '$bar', 'single quoted $bar was not interpolated');
};
#?niecza todo
{
my $gorch = "foo bar";
my @q := «a b c "$foo" f g $gorch m n '$bar' x y z»;
is(+@q, 14, "14 elements in mixed quoted/unquoted «» list, non-flattened");
is(@q[0], 'a', 'unquoted words are split correctly in the presence of quotes');
is(@q[3], $foo, 'first interpolation is $foo');
is(@q[4], 'f', 'unquoted between quotes is split correctly');
is(@q[6], "foo", 'Unquoted variable\'s first word interpolated correctly');
is(@q[7], "bar", 'Unquoted variable\'s second word interpolated correctly');
is(@q[9], 'n', 'unquoted between quotes is split correctly');
is(@q[10], '$bar', 'single quoted $bar was not interpolated');
is(@q[13], 'z', 'trailing unquoted words are split correctly in the presence of quotes');
};
{ # Q L<S02/Literals/No escapes at all>
my @q = ();
@q = (Q/foo\\bar$foo/);
is(+@q, 1, "Q// is singular");
is(@q[0], "foo\\\\bar\$foo", "special chars are meaningless"); # double quoting is to be more explicit
};
# L<S02/Forcing item context/"Pair" notation is also recognized inside>
{
# <<:Pair>>
my @q = <<:p(1)>>;
#?niecza todo
is(@q[0].perl, (:p(1)).perl, "pair inside <<>>-quotes - simple");
@q = <<:p(1) junk>>;
#?niecza todo
is(@q[0].perl, (:p(1)).perl, "pair inside <<>>-quotes - with some junk");
is(@q[1], 'junk', "pair inside <<>>-quotes - junk preserved");
@q = <<:def>>;
#?niecza todo
is(@q[0].perl, (:def).perl, ":pair in <<>>-quotes with no explicit value");
@q = "(EVAL failed)";
try { EVAL '@q = <<:p<moose>>>;' };
#?niecza todo
is(@q[0].perl, (p => "moose").perl, ":pair<anglequoted>");
};
{ # weird char escape sequences
is("\c97", "a", '\c97 is "a"');
is("\c102oo", "foo", '\c102 is "f", works next to other letters');
is("\c123", chr(123), '"\cXXX" and chr XXX are equivalent');
is("\c[12]3", chr(12) ~ "3", '\c[12]3 is the same as chr(12) concatenated with "3"');
is("\c[12] 3", chr(12) ~ " 3", 'respects spaces when interpolating a space character');
is("\c[13,10]", chr(13) ~ chr(10), 'allows multiple chars');
is("\x41", "A", 'hex interpolation - \x41 is "A"');
is("\o101", "A", 'octal interpolation - \o101 is also "A"' );
is("\c@", "\0", 'Unicode code point "@" converts correctly to "\0"');
is("\cA", chr(1), 'Unicode "A" is #1!');
is("\cZ", chr(26), 'Unicode "Z" is chr 26 (or \c26)');
}
{ # simple test for nested-bracket quoting, per S02
my $hi = q<<hi>>;
is($hi, "hi", 'q<<hi>> is "hi"');
}
is( q<< <<woot>> >>, ' <<woot>> ', 'nested <<texas>> quotes (RT #66888)' );
# L<S02/Adverbs on quotes/"for user-defined quotes">
# q:to
{
my $t;
$t = q:to /STREAM/;
Hello, World
STREAM
is $t.subst("\r\n", "\n", :g), "Hello, World\n", "Testing for q:to operator.";
$t = q:to /结束/;
Hello, World
结束
is $t.subst("\r\n", "\n", :g), "Hello, World\n", "Testing for q:to operator. (utf8)";
}
# Q
{
my $s1 = "hello"; #OK not used
my $t1 = Q /$s1, world/;
is $t1, '$s1, world', "Testing for Q operator.";
my $s2 = "你好"; #OK not used
my $t2 = Q /$s2, 世界/;
is $t2, '$s2, 世界', "Testing for Q operator. (utf8)";
}
# q:b
{
my $t = q:b /\n\n\n/;
is $t, "\n\n\n", "Testing for q:b operator.";
is q:b'\n\n', "\n\n", "Testing q:b'\\n'";
ok qb"\n\t".chars == 2, 'qb';
is Qb{a\nb}, "a\nb", 'Qb';
is Q:b{a\nb}, "a\nb", 'Q:b';
is Qs:b{\n}, "\n", 'Qs:b';
}
# q:x
{
# due to automatic newline translation, no need to check for \r\n on win32
my $result = "hello\n";
is q:x/echo hello/, $result, "Testing for q:x operator.";
}
# utf8
{
# 一 means "One" in Chinese.
is q:x/echo 一/, "\n", "Testing for q:x operator. (utf8)";
}
{
my $world = 'world';
ok qq:x/echo hello $world/ ~~ /^'hello world'\n$/, 'Testing qq:x operator';
}
#?niecza todo ':x'
{
my $output = $*DISTRO.is-win
?? q:x/echo hello& echo world/
!! q:x/echo hello; echo world/;
my @two_lines = $output.trim-trailing.lines;
is @two_lines, ["hello", "world"], 'testing q:x assigned to array';
}
#?niecza todo ':x'
{
my $hello = 'howdy';
my $sep = $*DISTRO.is-win ?? '&' !! ';';
my @two_lines = qq:x/echo $hello$sep echo world/.trim-trailing.lines;
is @two_lines, ["$hello", "world"], 'testing qq:x assigned to array';
}
# L<S02/Adverbs on quotes/"Interpolate % vars">
# q:h
#?niecza todo
{
my %t = (a => "perl", b => "rocks");
my $s;
$s = q:h /%t<>/;
is $s, ~%t, "Testing for q:h operator.";
}
# q:f
#?niecza skip '& escape'
{
my sub f { "hello" };
my $t = q:f /&f(), world/;
is $t, f() ~ ", world", "Testing for q:f operator.";
sub f_utf8 { "你好" };
$t = q:f /&f_utf8(), 世界/;
is $t, f_utf8() ~ ", 世界", "Testing for q:f operator. (utf8)";
}
# q:c
{
my sub f { "hello" };
my $t = q:c /{f}, world/;
is $t, f() ~ ", world", "Testing for q:c operator.";
}
# q:a
{
my @t = qw/a b c/;
my $s = q:a /@t[]/;
is $s, ~@t, "Testing for q:a operator.";
}
# q:s
{
my $s = "someone is laughing";
my $t = q:s /$s/;
is $t, $s, "Testing for q:s operator.";
$s = "有人在笑";
$t = q:s /$s/;
is $t, $s, "Testing for q:s operator. (utf8)";
}
# multiple quoting modes
{
my $s = 'string';
my @a = <arr1 arr2>;
my %h = (foo => 'bar'); #OK not used
is(q:s:a'$s@a[]%h', $s ~ @a ~ '%h', 'multiple modifiers interpolate only what is expected');
}
# shorthands:
#?niecza skip '& escape, zen slices'
{
my $alpha = 'foo';
my $beta = 'bar';
my @delta = <baz qux>;
my %gamma = (abc => 123);
sub zeta {42};
is(qw[a b], <a b>, 'qw');
is(qqww[$alpha $beta], <foo bar>, 'qqww');
is(qq[$alpha $beta], 'foo bar', 'qq');
is(Qs[$alpha @delta[] %gamma<>], 'foo @delta[] %gamma<>', 'Qs');
is(Qa[$alpha @delta[] %gamma<>], '$alpha ' ~ @delta ~ ' %gamma<>', 'Qa');
is(Qh[$alpha @delta[] %gamma<>], '$alpha @delta[] ' ~ %gamma, 'Qh');
is(Qf[$alpha &zeta()], '$alpha 42', 'Qf');
is(Qb[$alpha\t$beta], '$alpha $beta', 'Qb');
is(Qc[{1+1}], 2, 'Qc');
is(Qw["a b" \ {1+1}], ('"a', 'b"', '\\', '{1+1}'), 'Qw');
is(Q:w[a b \ {1+1}], ('a', 'b', '\\', '{1+1}'), 'Q:w');
is(Qww["a b" \ {1+1}], ( 'a b', '\\', '{1+1}'), 'Qww');
}
# L<S02/Backslashing/All other quoting forms (including standard single quotes)>
{
is('test\\', "test\\", "backslashes at end of single quoted string");
is 'a\\b\''.chars, 4, 'backslash and single quote';
}
{
isa-ok rx/foo/, Regex, 'rx/.../';
isa-ok rx{foo}, Regex, 'rx{...}';
isa-ok rx:i{foo}, Regex, 'rx:i{...}';
isa-ok rx:ignorecase{foo}, Regex, 'rx:i{...}';
isa-ok rx:s{foo}, Regex, 'rx:i{...}';
isa-ok rx:sigspace{foo}, Regex, 'rx:i{...}';
throws-like { EVAL 'rx:unknown{foo}' },
X::Syntax::Regex::Adverb,
'rx:unknown dies';
throws-like { EVAL 'rx:g{foo}' },
X::Syntax::Regex::Adverb,
'g does not make sense on rx//';
}
{
my $var = 'world';
is qx/echo world/.chomp, "world", 'qx';
is qqx/echo $var/.chomp, "world", 'qqx';
is Qx[echo '\\\\'] cmp qx[echo '\\\\\\\\'], Same, 'Qx treats backslash literally, qx treats \\ as one backslash';
# RT #78874
is qx/echo world/.trans('wd' => 'WD').chomp, "WorlD", "qx doesn't return a Parrot string";
}
# RT #120529
{
%*ENV<ENV_P6_SPECTEST_120529>='foo';
my $check = $*DISTRO.is-win ?? qx/set/ !! qx/env/;
ok $check ~~ /ENV_P6_SPECTEST_120529/, 'qx passes environmental variables';
}
# RT #75320
{
is "$foo >>", "FOO >>", 'quoting and >> (RT #75320, 1)';
is "$foo>>", "FOO>>", 'quoting and >> (RT #75320, 2)';
}
# RT #85506
{
my $a = 42;
is "$a [<file>]", '42 [<file>]', 'can handle [ after whitespace after var interpolation';
}
# RT #90124
throws-like { EVAL q["@a<"] },
X::Comp,
'unclosed quote after array variable is an error';
# RT #114090
is "foo $( my $x = 3 + 4; "bar" ) baz", 'foo bar baz', 'declaration in interpolation';
#115272
#?niecza todo "Weird quoting issue"
is <<<\>'n'>>.join('|'), '<>|n', 'texas quotes edge case';
#?niecza todo
{
$_ = 'abc';
/a./;
is $/, 'ab', '/.../ literals match in void context';
# rx does the same: http://irclog.perlgeek.de/perl8/2013-02-20#i_6479200
rx/b./;
is $/, 'bc', 'rx/.../ literals match in void context';
}
# RT #75320
{
my $x = 42;
is "$x >> ", "42 >> ", '>> in interpolation is not shift operator';
}
# (RT #83952 is wrong about \cI being an error)
is "\cIa", "\ta", '\cI is a TAB';
is "\c?a", "\x[7f]a", '\c? is a DEL';
is "\c@a", "\0a", '\c@ is a NUL';
{
throws-like { EVAL 'q< < >' },
X::Comp,
"Unmatched openers and closers fails to parse";
is q< \> >, " > ", "Escaped closer produces the opener unescaped";
is q< \< >, " < ", "Escaped opener produces the opener unescaped";
}
# RT #125995
{
sub a(**@a) { @a.elems }
my $res = a << a b >>;
is $res, 1, '<< a b >> does not accidentally flatten into arg list';
}
# RT #120788
is q :heredoc :c "EOF", "2+3=5\n", ':c applied after :heredoc has effect';
2+3={2+3}
EOF
is q :heredoc :w "EOF", <omg wtf bbq amazing cat>, ':w applied after :heredoc has effect';
omg wtf bbq
amazing cat
EOF
# RT #125543
{
my $warned = 0;
EVAL Q:to/CODE_END/;
my $here = qq:to/END_TEXT/;
foo\nbar
END_TEXT
CODE_END
CONTROL {
when CX::Warn {
$warned = 1;
.resume;
}
}
nok $warned, '\n in a heredoc does not factor into dedenting';
}
{
my $warned = 0;
EVAL Q:to/CODE_END/;
my $here = qq:to/END_TEXT/;
foo\r\nbar
END_TEXT
CODE_END
CONTROL {
when CX::Warn {
$warned = 1;
.resume;
}
}
nok $warned, '\r\n in a heredoc does not factor dedenting';
}
# RT #120895
ok qq:to/EOF/ ~~ /\t/, '\t in heredoc does not turn into spaces';
\thello
EOF
# RT #123808
{
my $a = 42;
for (<<$a b c>>, qqww{$a b c}, qqw{$a b c}).kv -> $i, $_ {
ok .WHAT === List, "word-split qouting constructs return List ($i)";
}
}
# RT #128304
{
is-deeply qww<a a ‘b b’ ‚b b’ ’b b‘ ’b b‘ ’b b’ ‚b b‘ ‚b b’ “b b” „b b”
”b b“ ”b b“ ”b b” „b b“ „b b” 「b b」 「b b」>,
('a', 'a', |('b b' xx 16)),
'fancy quotes in qww work just like regular quotes';
}
# vim: ft=perl6