Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1085 insertions, 0 deletions

diff --git a/upstream/mageia-cauldron/man3pm/feature.3pm b/upstream/mageia-cauldron/man3pm/feature.3pm
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+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
+.\"
+.\" Standard preamble:
+.\" ========================================================================
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
+..
+.de Vb \" Begin verbatim text
+.ft CW
+.nf
+.ne \\$1
+..
+.de Ve \" End verbatim text
+.ft R
+.fi
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
+.ie n \{\
+.    ds C` ""
+.    ds C' ""
+'br\}
+.el\{\
+.    ds C`
+.    ds C'
+'br\}
+.\"
+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD.  Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
+..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+.    if \nF \{\
+.        de IX
+.        tm Index:\\$1\t\\n%\t"\\$2"
+..
+.        if !\nF==2 \{\
+.            nr % 0
+.            nr F 2
+.        \}
+.    \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "feature 3pm"
+.TH feature 3pm 2023-11-28 "perl v5.38.2" "Perl Programmers Reference Guide"
+.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+feature \- Perl pragma to enable new features
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 1
+\&    use feature qw(fc say);
+\&
+\&    # Without the "use feature" above, this code would not be able to find
+\&    # the built\-ins "say" or "fc":
+\&    say "The case\-folded version of $x is: " . fc $x;
+\&
+\&
+\&    # set features to match the :5.36 bundle, which may turn off or on
+\&    # multiple features (see "FEATURE BUNDLES" below)
+\&    use feature \*(Aq:5.36\*(Aq;
+\&
+\&
+\&    # implicitly loads :5.36 feature bundle
+\&    use v5.36;
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+It is usually impossible to add new syntax to Perl without breaking
+some existing programs.  This pragma provides a way to minimize that
+risk. New syntactic constructs, or new semantic meanings to older
+constructs, can be enabled by \f(CW\*(C`use feature \*(Aqfoo\*(Aq\*(C'\fR, and will be parsed
+only when the appropriate feature pragma is in scope.  (Nevertheless, the
+\&\f(CW\*(C`CORE::\*(C'\fR prefix provides access to all Perl keywords, regardless of this
+pragma.)
+.SS "Lexical effect"
+.IX Subsection "Lexical effect"
+Like other pragmas (\f(CW\*(C`use strict\*(C'\fR, for example), features have a lexical
+effect.  \f(CW\*(C`use feature qw(foo)\*(C'\fR will only make the feature "foo" available
+from that point to the end of the enclosing block.
+.PP
+.Vb 5
+\&    {
+\&        use feature \*(Aqsay\*(Aq;
+\&        say "say is available here";
+\&    }
+\&    print "But not here.\en";
+.Ve
+.ie n .SS """no feature"""
+.el .SS "\f(CWno feature\fP"
+.IX Subsection "no feature"
+Features can also be turned off by using \f(CW\*(C`no feature "foo"\*(C'\fR.  This too
+has lexical effect.
+.PP
+.Vb 7
+\&    use feature \*(Aqsay\*(Aq;
+\&    say "say is available here";
+\&    {
+\&        no feature \*(Aqsay\*(Aq;
+\&        print "But not here.\en";
+\&    }
+\&    say "Yet it is here.";
+.Ve
+.PP
+\&\f(CW\*(C`no feature\*(C'\fR with no features specified will reset to the default group.  To
+disable \fIall\fR features (an unusual request!) use \f(CW\*(C`no feature \*(Aq:all\*(Aq\*(C'\fR.
+.SH "AVAILABLE FEATURES"
+.IX Header "AVAILABLE FEATURES"
+Read "FEATURE BUNDLES" for the feature cheat sheet summary.
+.SS "The 'say' feature"
+.IX Subsection "The 'say' feature"
+\&\f(CW\*(C`use feature \*(Aqsay\*(Aq\*(C'\fR tells the compiler to enable the Raku-inspired
+\&\f(CW\*(C`say\*(C'\fR function.
+.PP
+See "say" in perlfunc for details.
+.PP
+This feature is available starting with Perl 5.10.
+.SS "The 'state' feature"
+.IX Subsection "The 'state' feature"
+\&\f(CW\*(C`use feature \*(Aqstate\*(Aq\*(C'\fR tells the compiler to enable \f(CW\*(C`state\*(C'\fR
+variables.
+.PP
+See "Persistent Private Variables" in perlsub for details.
+.PP
+This feature is available starting with Perl 5.10.
+.SS "The 'switch' feature"
+.IX Subsection "The 'switch' feature"
+\&\fBWARNING\fR: This feature is still experimental and the implementation may
+change or be removed in future versions of Perl.  For this reason, Perl will
+warn when you use the feature, unless you have explicitly disabled the warning:
+.PP
+.Vb 1
+\&    no warnings "experimental::smartmatch";
+.Ve
+.PP
+\&\f(CW\*(C`use feature \*(Aqswitch\*(Aq\*(C'\fR tells the compiler to enable the Raku
+given/when construct.
+.PP
+See "Switch Statements" in perlsyn for details.
+.PP
+This feature is available starting with Perl 5.10.
+It is deprecated starting with Perl 5.38, and using
+\&\f(CW\*(C`given\*(C'\fR, \f(CW\*(C`when\*(C'\fR or smartmatch will throw a warning.
+It will be removed in Perl 5.42.
+.SS "The 'unicode_strings' feature"
+.IX Subsection "The 'unicode_strings' feature"
+\&\f(CW\*(C`use feature \*(Aqunicode_strings\*(Aq\*(C'\fR tells the compiler to use Unicode rules
+in all string operations executed within its scope (unless they are also
+within the scope of either \f(CW\*(C`use locale\*(C'\fR or \f(CW\*(C`use bytes\*(C'\fR).  The same applies
+to all regular expressions compiled within the scope, even if executed outside
+it.  It does not change the internal representation of strings, but only how
+they are interpreted.
+.PP
+\&\f(CW\*(C`no feature \*(Aqunicode_strings\*(Aq\*(C'\fR tells the compiler to use the traditional
+Perl rules wherein the native character set rules is used unless it is
+clear to Perl that Unicode is desired.  This can lead to some surprises
+when the behavior suddenly changes.  (See
+"The "Unicode Bug"" in perlunicode for details.)  For this reason, if you are
+potentially using Unicode in your program, the
+\&\f(CW\*(C`use feature \*(Aqunicode_strings\*(Aq\*(C'\fR subpragma is \fBstrongly\fR recommended.
+.PP
+This feature is available starting with Perl 5.12; was almost fully
+implemented in Perl 5.14; and extended in Perl 5.16 to cover \f(CW\*(C`quotemeta\*(C'\fR;
+was extended further in Perl 5.26 to cover the range
+operator; and was extended again in Perl 5.28 to
+cover special-cased whitespace splitting.
+.SS "The 'unicode_eval' and 'evalbytes' features"
+.IX Subsection "The 'unicode_eval' and 'evalbytes' features"
+Together, these two features are intended to replace the legacy string
+\&\f(CW\*(C`eval\*(C'\fR function, which behaves problematically in some instances.  They are
+available starting with Perl 5.16, and are enabled by default by a
+\&\f(CW\*(C`use\ 5.16\*(C'\fR or higher declaration.
+.PP
+\&\f(CW\*(C`unicode_eval\*(C'\fR changes the behavior of plain string \f(CW\*(C`eval\*(C'\fR to work more
+consistently, especially in the Unicode world.  Certain (mis)behaviors
+couldn't be changed without breaking some things that had come to rely on
+them, so the feature can be enabled and disabled.  Details are at
+"Under the "unicode_eval" feature" in perlfunc.
+.PP
+\&\f(CW\*(C`evalbytes\*(C'\fR is like string \f(CW\*(C`eval\*(C'\fR, but it treats its argument as a byte
+string. Details are at "evalbytes EXPR" in perlfunc.  Without a
+\&\f(CW\*(C`use\ feature\ \*(Aqevalbytes\*(Aq\*(C'\fR nor a \f(CW\*(C`use\ v5.16\*(C'\fR (or higher) declaration in
+the current scope, you can still access it by instead writing
+\&\f(CW\*(C`CORE::evalbytes\*(C'\fR.
+.SS "The 'current_sub' feature"
+.IX Subsection "The 'current_sub' feature"
+This provides the \f(CW\*(C`_\|_SUB_\|_\*(C'\fR token that returns a reference to the current
+subroutine or \f(CW\*(C`undef\*(C'\fR outside of a subroutine.
+.PP
+This feature is available starting with Perl 5.16.
+.SS "The 'array_base' feature"
+.IX Subsection "The 'array_base' feature"
+This feature supported the legacy \f(CW$[\fR variable.  See "$[" in perlvar.
+It was on by default but disabled under \f(CW\*(C`use v5.16\*(C'\fR (see
+"IMPLICIT LOADING", below) and unavailable since perl 5.30.
+.PP
+This feature is available under this name starting with Perl 5.16.  In
+previous versions, it was simply on all the time, and this pragma knew
+nothing about it.
+.SS "The 'fc' feature"
+.IX Subsection "The 'fc' feature"
+\&\f(CW\*(C`use feature \*(Aqfc\*(Aq\*(C'\fR tells the compiler to enable the \f(CW\*(C`fc\*(C'\fR function,
+which implements Unicode casefolding.
+.PP
+See "fc" in perlfunc for details.
+.PP
+This feature is available from Perl 5.16 onwards.
+.SS "The 'lexical_subs' feature"
+.IX Subsection "The 'lexical_subs' feature"
+In Perl versions prior to 5.26, this feature enabled
+declaration of subroutines via \f(CW\*(C`my sub foo\*(C'\fR, \f(CW\*(C`state sub foo\*(C'\fR
+and \f(CW\*(C`our sub foo\*(C'\fR syntax.  See "Lexical Subroutines" in perlsub for details.
+.PP
+This feature is available from Perl 5.18 onwards.  From Perl 5.18 to 5.24,
+it was classed as experimental, and Perl emitted a warning for its
+usage, except when explicitly disabled:
+.PP
+.Vb 1
+\&  no warnings "experimental::lexical_subs";
+.Ve
+.PP
+As of Perl 5.26, use of this feature no longer triggers a warning, though
+the \f(CW\*(C`experimental::lexical_subs\*(C'\fR warning category still exists (for
+compatibility with code that disables it).  In addition, this syntax is
+not only no longer experimental, but it is enabled for all Perl code,
+regardless of what feature declarations are in scope.
+.SS "The 'postderef' and 'postderef_qq' features"
+.IX Subsection "The 'postderef' and 'postderef_qq' features"
+The 'postderef_qq' feature extends the applicability of postfix
+dereference syntax so that
+postfix array dereference, postfix scalar dereference, and
+postfix array highest index access are available in double-quotish interpolations.
+For example, it makes the following two statements equivalent:
+.PP
+.Vb 2
+\&  my $s = "[@{ $h\->{a} }]";
+\&  my $s = "[$h\->{a}\->@*]";
+.Ve
+.PP
+This feature is available from Perl 5.20 onwards. In Perl 5.20 and 5.22, it
+was classed as experimental, and Perl emitted a warning for its
+usage, except when explicitly disabled:
+.PP
+.Vb 1
+\&  no warnings "experimental::postderef";
+.Ve
+.PP
+As of Perl 5.24, use of this feature no longer triggers a warning, though
+the \f(CW\*(C`experimental::postderef\*(C'\fR warning category still exists (for
+compatibility with code that disables it).
+.PP
+The 'postderef' feature was used in Perl 5.20 and Perl 5.22 to enable
+postfix dereference syntax outside double-quotish interpolations. In those
+versions, using it triggered the \f(CW\*(C`experimental::postderef\*(C'\fR warning in the
+same way as the 'postderef_qq' feature did. As of Perl 5.24, this syntax is
+not only no longer experimental, but it is enabled for all Perl code,
+regardless of what feature declarations are in scope.
+.SS "The 'signatures' feature"
+.IX Subsection "The 'signatures' feature"
+This enables syntax for declaring subroutine arguments as lexical variables.
+For example, for this subroutine:
+.PP
+.Vb 3
+\&    sub foo ($left, $right) {
+\&        return $left + $right;
+\&    }
+.Ve
+.PP
+Calling \f(CW\*(C`foo(3, 7)\*(C'\fR will assign \f(CW3\fR into \f(CW$left\fR and \f(CW7\fR into \f(CW$right\fR.
+.PP
+See "Signatures" in perlsub for details.
+.PP
+This feature is available from Perl 5.20 onwards. From Perl 5.20 to 5.34,
+it was classed as experimental, and Perl emitted a warning for its usage,
+except when explicitly disabled:
+.PP
+.Vb 1
+\&  no warnings "experimental::signatures";
+.Ve
+.PP
+As of Perl 5.36, use of this feature no longer triggers a warning, though the
+\&\f(CW\*(C`experimental::signatures\*(C'\fR warning category still exists (for compatibility
+with code that disables it). This feature is now considered stable, and is
+enabled automatically by \f(CW\*(C`use v5.36\*(C'\fR (or higher).
+.SS "The 'refaliasing' feature"
+.IX Subsection "The 'refaliasing' feature"
+\&\fBWARNING\fR: This feature is still experimental and the implementation may
+change or be removed in future versions of Perl.  For this reason, Perl will
+warn when you use the feature, unless you have explicitly disabled the warning:
+.PP
+.Vb 1
+\&    no warnings "experimental::refaliasing";
+.Ve
+.PP
+This enables aliasing via assignment to references:
+.PP
+.Vb 7
+\&    \e$a = \e$b; # $a and $b now point to the same scalar
+\&    \e@a = \e@b; #                     to the same array
+\&    \e%a = \e%b;
+\&    \e&a = \e&b;
+\&    foreach \e%hash (@array_of_hash_refs) {
+\&        ...
+\&    }
+.Ve
+.PP
+See "Assigning to References" in perlref for details.
+.PP
+This feature is available from Perl 5.22 onwards.
+.SS "The 'bitwise' feature"
+.IX Subsection "The 'bitwise' feature"
+This makes the four standard bitwise operators (\f(CW\*(C`& | ^ ~\*(C'\fR) treat their
+operands consistently as numbers, and introduces four new dotted operators
+(\f(CW\*(C`&. |. ^. ~.\*(C'\fR) that treat their operands consistently as strings.  The
+same applies to the assignment variants (\f(CW\*(C`&= |= ^= &.= |.= ^.=\*(C'\fR).
+.PP
+See "Bitwise String Operators" in perlop for details.
+.PP
+This feature is available from Perl 5.22 onwards.  Starting in Perl 5.28,
+\&\f(CW\*(C`use v5.28\*(C'\fR will enable the feature.  Before 5.28, it was still
+experimental and would emit a warning in the "experimental::bitwise"
+category.
+.SS "The 'declared_refs' feature"
+.IX Subsection "The 'declared_refs' feature"
+\&\fBWARNING\fR: This feature is still experimental and the implementation may
+change or be removed in future versions of Perl.  For this reason, Perl will
+warn when you use the feature, unless you have explicitly disabled the warning:
+.PP
+.Vb 1
+\&    no warnings "experimental::declared_refs";
+.Ve
+.PP
+This allows a reference to a variable to be declared with \f(CW\*(C`my\*(C'\fR, \f(CW\*(C`state\*(C'\fR,
+or \f(CW\*(C`our\*(C'\fR, or localized with \f(CW\*(C`local\*(C'\fR.  It is intended mainly for use in
+conjunction with the "refaliasing" feature.  See "Declaring a
+Reference to a Variable" in perlref for examples.
+.PP
+This feature is available from Perl 5.26 onwards.
+.SS "The 'isa' feature"
+.IX Subsection "The 'isa' feature"
+This allows the use of the \f(CW\*(C`isa\*(C'\fR infix operator, which tests whether the
+scalar given by the left operand is an object of the class given by the
+right operand. See "Class Instance Operator" in perlop for more details.
+.PP
+This feature is available from Perl 5.32 onwards.  From Perl 5.32 to 5.34,
+it was classed as experimental, and Perl emitted a warning for its usage,
+except when explicitly disabled:
+.PP
+.Vb 1
+\&    no warnings "experimental::isa";
+.Ve
+.PP
+As of Perl 5.36, use of this feature no longer triggers a warning (though the
+\&\f(CW\*(C`experimental::isa\*(C'\fR warning category stilll exists for compatibility with
+code that disables it). This feature is now considered stable, and is enabled
+automatically by \f(CW\*(C`use v5.36\*(C'\fR (or higher).
+.SS "The 'indirect' feature"
+.IX Subsection "The 'indirect' feature"
+This feature allows the use of indirect object
+syntax for method calls, e.g.  \f(CW\*(C`new
+Foo 1, 2;\*(C'\fR. It is enabled by default, but can be turned off to
+disallow indirect object syntax.
+.PP
+This feature is available under this name from Perl 5.32 onwards. In
+previous versions, it was simply on all the time.  To disallow (or
+warn on) indirect object syntax on older Perls, see the indirect
+CPAN module.
+.SS "The 'multidimensional' feature"
+.IX Subsection "The 'multidimensional' feature"
+This feature enables multidimensional array emulation, a perl 4 (or
+earlier) feature that was used to emulate multidimensional arrays with
+hashes.  This works by converting code like \f(CW$foo{$x, $y}\fR into
+\&\f(CW$foo{join($;, $x, $y)}\fR.  It is enabled by default, but can be
+turned off to disable multidimensional array emulation.
+.PP
+When this feature is disabled the syntax that is normally replaced
+will report a compilation error.
+.PP
+This feature is available under this name from Perl 5.34 onwards. In
+previous versions, it was simply on all the time.
+.PP
+You can use the multidimensional module on CPAN to disable
+multidimensional array emulation for older versions of Perl.
+.SS "The 'bareword_filehandles' feature"
+.IX Subsection "The 'bareword_filehandles' feature"
+This feature enables bareword filehandles for builtin functions
+operations, a generally discouraged practice.  It is enabled by
+default, but can be turned off to disable bareword filehandles, except
+for the exceptions listed below.
+.PP
+The perl built-in filehandles \f(CW\*(C`STDIN\*(C'\fR, \f(CW\*(C`STDOUT\*(C'\fR, \f(CW\*(C`STDERR\*(C'\fR, \f(CW\*(C`DATA\*(C'\fR,
+\&\f(CW\*(C`ARGV\*(C'\fR, \f(CW\*(C`ARGVOUT\*(C'\fR and the special \f(CW\*(C`_\*(C'\fR are always enabled.
+.PP
+This feature is enabled under this name from Perl 5.34 onwards.  In
+previous versions it was simply on all the time.
+.PP
+You can use the bareword::filehandles module on CPAN to disable
+bareword filehandles for older versions of perl.
+.SS "The 'try' feature"
+.IX Subsection "The 'try' feature"
+\&\fBWARNING\fR: This feature is still experimental and the implementation may
+change or be removed in future versions of Perl.  For this reason, Perl will
+warn when you use the feature, unless you have explicitly disabled the warning:
+.PP
+.Vb 1
+\&    no warnings "experimental::try";
+.Ve
+.PP
+This feature enables the \f(CW\*(C`try\*(C'\fR and \f(CW\*(C`catch\*(C'\fR syntax, which allows exception
+handling, where exceptions thrown from the body of the block introduced with
+\&\f(CW\*(C`try\*(C'\fR are caught by executing the body of the \f(CW\*(C`catch\*(C'\fR block.
+.PP
+For more information, see "Try Catch Exception Handling" in perlsyn.
+.SS "The 'defer' feature"
+.IX Subsection "The 'defer' feature"
+\&\fBWARNING\fR: This feature is still experimental and the implementation may
+change or be removed in future versions of Perl.  For this reason, Perl will
+warn when you use the feature, unless you have explicitly disabled the warning:
+.PP
+.Vb 1
+\&    no warnings "experimental::defer";
+.Ve
+.PP
+This feature enables the \f(CW\*(C`defer\*(C'\fR block syntax, which allows a block of code
+to be deferred until when the flow of control leaves the block which contained
+it. For more details, see "defer" in perlsyn.
+.SS "The 'extra_paired_delimiters' feature"
+.IX Subsection "The 'extra_paired_delimiters' feature"
+\&\fBWARNING\fR: This feature is still experimental and the implementation may
+change or be removed in future versions of Perl.  For this reason, Perl will
+warn when you use the feature, unless you have explicitly disabled the warning:
+.PP
+.Vb 1
+\&    no warnings "experimental::extra_paired_delimiters";
+.Ve
+.PP
+This feature enables the use of more paired string delimiters than the
+traditional four, \f(CW\*(C`<\ \ >\*(C'\fR, \f(CW\*(C`(\ )\*(C'\fR, \f(CW\*(C`{\ }\*(C'\fR, and \f(CW\*(C`[\ ]\*(C'\fR.  When
+this feature is on, for example, you can say \f(CW\*(C`qr«pat»\*(C'\fR.
+.PP
+As with any usage of non-ASCII delimiters in a UTF\-8\-encoded source file, you
+will want to ensure the parser will decode the source code from UTF\-8 bytes
+with a declaration such as \f(CW\*(C`use utf8\*(C'\fR.
+.PP
+This feature is available starting in Perl 5.36.
+.PP
+The complete list of accepted paired delimiters as of Unicode 14.0 is:
+.PP
+.Vb 10
+\& (  )    U+0028, U+0029   LEFT/RIGHT PARENTHESIS
+\& <  >    U+003C, U+003E   LESS\-THAN/GREATER\-THAN SIGN
+\& [  ]    U+005B, U+005D   LEFT/RIGHT SQUARE BRACKET
+\& {  }    U+007B, U+007D   LEFT/RIGHT CURLY BRACKET
+\& «  »    U+00AB, U+00BB   LEFT/RIGHT\-POINTING DOUBLE ANGLE QUOTATION MARK
+\& »  «    U+00BB, U+00AB   RIGHT/LEFT\-POINTING DOUBLE ANGLE QUOTATION MARK
+\& ܆  ܇    U+0706, U+0707   SYRIAC COLON SKEWED LEFT/RIGHT
+\& ༺  ༻    U+0F3A, U+0F3B   TIBETAN MARK GUG RTAGS GYON,  TIBETAN MARK GUG
+\&                          RTAGS GYAS
+\& ༼  ༽    U+0F3C, U+0F3D   TIBETAN MARK ANG KHANG GYON,  TIBETAN MARK ANG
+\&                          KHANG GYAS
+\& ᚛  ᚜    U+169B, U+169C   OGHAM FEATHER MARK,  OGHAM REVERSED FEATHER MARK
+\& ‘  ’    U+2018, U+2019   LEFT/RIGHT SINGLE QUOTATION MARK
+\& ’  ‘    U+2019, U+2018   RIGHT/LEFT SINGLE QUOTATION MARK
+\& “  ”    U+201C, U+201D   LEFT/RIGHT DOUBLE QUOTATION MARK
+\& ”  “    U+201D, U+201C   RIGHT/LEFT DOUBLE QUOTATION MARK
+\& ‵  ′    U+2035, U+2032   REVERSED PRIME,  PRIME
+\& ‶  ″    U+2036, U+2033   REVERSED DOUBLE PRIME,  DOUBLE PRIME
+\& ‷  ‴    U+2037, U+2034   REVERSED TRIPLE PRIME,  TRIPLE PRIME
+\& ‹  ›    U+2039, U+203A   SINGLE LEFT/RIGHT\-POINTING ANGLE QUOTATION MARK
+\& ›  ‹    U+203A, U+2039   SINGLE RIGHT/LEFT\-POINTING ANGLE QUOTATION MARK
+\& ⁅  ⁆    U+2045, U+2046   LEFT/RIGHT SQUARE BRACKET WITH QUILL
+\& ⁍  ⁌    U+204D, U+204C   BLACK RIGHT/LEFTWARDS BULLET
+\& ⁽  ⁾    U+207D, U+207E   SUPERSCRIPT LEFT/RIGHT PARENTHESIS
+\& ₍  ₎    U+208D, U+208E   SUBSCRIPT LEFT/RIGHT PARENTHESIS
+\& →  ←    U+2192, U+2190   RIGHT/LEFTWARDS ARROW
+\& ↛  ↚    U+219B, U+219A   RIGHT/LEFTWARDS ARROW WITH STROKE
+\& ↝  ↜    U+219D, U+219C   RIGHT/LEFTWARDS WAVE ARROW
+\& ↠  ↞    U+21A0, U+219E   RIGHT/LEFTWARDS TWO HEADED ARROW
+\& ↣  ↢    U+21A3, U+21A2   RIGHT/LEFTWARDS ARROW WITH TAIL
+\& ↦  ↤    U+21A6, U+21A4   RIGHT/LEFTWARDS ARROW FROM BAR
+\& ↪  ↩    U+21AA, U+21A9   RIGHT/LEFTWARDS ARROW WITH HOOK
+\& ↬  ↫    U+21AC, U+21AB   RIGHT/LEFTWARDS ARROW WITH LOOP
+\& ↱  ↰    U+21B1, U+21B0   UPWARDS ARROW WITH TIP RIGHT/LEFTWARDS
+\& ↳  ↲    U+21B3, U+21B2   DOWNWARDS ARROW WITH TIP RIGHT/LEFTWARDS
+\& ⇀  ↼    U+21C0, U+21BC   RIGHT/LEFTWARDS HARPOON WITH BARB UPWARDS
+\& ⇁  ↽    U+21C1, U+21BD   RIGHT/LEFTWARDS HARPOON WITH BARB DOWNWARDS
+\& ⇉  ⇇    U+21C9, U+21C7   RIGHT/LEFTWARDS PAIRED ARROWS
+\& ⇏  ⇍    U+21CF, U+21CD   RIGHT/LEFTWARDS DOUBLE ARROW WITH STROKE
+\& ⇒  ⇐    U+21D2, U+21D0   RIGHT/LEFTWARDS DOUBLE ARROW
+\& ⇛  ⇚    U+21DB, U+21DA   RIGHT/LEFTWARDS TRIPLE ARROW
+\& ⇝  ⇜    U+21DD, U+21DC   RIGHT/LEFTWARDS SQUIGGLE ARROW
+\& ⇢  ⇠    U+21E2, U+21E0   RIGHT/LEFTWARDS DASHED ARROW
+\& ⇥  ⇤    U+21E5, U+21E4   RIGHT/LEFTWARDS ARROW TO BAR
+\& ⇨  ⇦    U+21E8, U+21E6   RIGHT/LEFTWARDS WHITE ARROW
+\& ⇴  ⬰    U+21F4, U+2B30   RIGHT/LEFT ARROW WITH SMALL CIRCLE
+\& ⇶  ⬱    U+21F6, U+2B31   THREE RIGHT/LEFTWARDS ARROWS
+\& ⇸  ⇷    U+21F8, U+21F7   RIGHT/LEFTWARDS ARROW WITH VERTICAL STROKE
+\& ⇻  ⇺    U+21FB, U+21FA   RIGHT/LEFTWARDS ARROW WITH DOUBLE VERTICAL
+\&                          STROKE
+\& ⇾  ⇽    U+21FE, U+21FD   RIGHT/LEFTWARDS OPEN\-HEADED ARROW
+\& ∈  ∋    U+2208, U+220B   ELEMENT OF,  CONTAINS AS MEMBER
+\& ∉  ∌    U+2209, U+220C   NOT AN ELEMENT OF,  DOES NOT CONTAIN AS MEMBER
+\& ∊  ∍    U+220A, U+220D   SMALL ELEMENT OF,  SMALL CONTAINS AS MEMBER
+\& ≤  ≥    U+2264, U+2265   LESS\-THAN/GREATER\-THAN OR EQUAL TO
+\& ≦  ≧    U+2266, U+2267   LESS\-THAN/GREATER\-THAN OVER EQUAL TO
+\& ≨  ≩    U+2268, U+2269   LESS\-THAN/GREATER\-THAN BUT NOT EQUAL TO
+\& ≪  ≫    U+226A, U+226B   MUCH LESS\-THAN/GREATER\-THAN
+\& ≮  ≯    U+226E, U+226F   NOT LESS\-THAN/GREATER\-THAN
+\& ≰  ≱    U+2270, U+2271   NEITHER LESS\-THAN/GREATER\-THAN NOR EQUAL TO
+\& ≲  ≳    U+2272, U+2273   LESS\-THAN/GREATER\-THAN OR EQUIVALENT TO
+\& ≴  ≵    U+2274, U+2275   NEITHER LESS\-THAN/GREATER\-THAN NOR EQUIVALENT TO
+\& ≺  ≻    U+227A, U+227B   PRECEDES/SUCCEEDS
+\& ≼  ≽    U+227C, U+227D   PRECEDES/SUCCEEDS OR EQUAL TO
+\& ≾  ≿    U+227E, U+227F   PRECEDES/SUCCEEDS OR EQUIVALENT TO
+\& ⊀  ⊁    U+2280, U+2281   DOES NOT PRECEDE/SUCCEED
+\& ⊂  ⊃    U+2282, U+2283   SUBSET/SUPERSET OF
+\& ⊄  ⊅    U+2284, U+2285   NOT A SUBSET/SUPERSET OF
+\& ⊆  ⊇    U+2286, U+2287   SUBSET/SUPERSET OF OR EQUAL TO
+\& ⊈  ⊉    U+2288, U+2289   NEITHER A SUBSET/SUPERSET OF NOR EQUAL TO
+\& ⊊  ⊋    U+228A, U+228B   SUBSET/SUPERSET OF WITH NOT EQUAL TO
+\& ⊣  ⊢    U+22A3, U+22A2   LEFT/RIGHT TACK
+\& ⊦  ⫞    U+22A6, U+2ADE   ASSERTION,  SHORT LEFT TACK
+\& ⊨  ⫤    U+22A8, U+2AE4   TRUE,  VERTICAL BAR DOUBLE LEFT TURNSTILE
+\& ⊩  ⫣    U+22A9, U+2AE3   FORCES,  DOUBLE VERTICAL BAR LEFT TURNSTILE
+\& ⊰  ⊱    U+22B0, U+22B1   PRECEDES/SUCCEEDS UNDER RELATION
+\& ⋐  ⋑    U+22D0, U+22D1   DOUBLE SUBSET/SUPERSET
+\& ⋖  ⋗    U+22D6, U+22D7   LESS\-THAN/GREATER\-THAN WITH DOT
+\& ⋘  ⋙    U+22D8, U+22D9   VERY MUCH LESS\-THAN/GREATER\-THAN
+\& ⋜  ⋝    U+22DC, U+22DD   EQUAL TO OR LESS\-THAN/GREATER\-THAN
+\& ⋞  ⋟    U+22DE, U+22DF   EQUAL TO OR PRECEDES/SUCCEEDS
+\& ⋠  ⋡    U+22E0, U+22E1   DOES NOT PRECEDE/SUCCEED OR EQUAL
+\& ⋦  ⋧    U+22E6, U+22E7   LESS\-THAN/GREATER\-THAN BUT NOT EQUIVALENT TO
+\& ⋨  ⋩    U+22E8, U+22E9   PRECEDES/SUCCEEDS BUT NOT EQUIVALENT TO
+\& ⋲  ⋺    U+22F2, U+22FA   ELEMENT OF/CONTAINS WITH LONG HORIZONTAL STROKE
+\& ⋳  ⋻    U+22F3, U+22FB   ELEMENT OF/CONTAINS WITH VERTICAL BAR AT END OF
+\&                          HORIZONTAL STROKE
+\& ⋴  ⋼    U+22F4, U+22FC   SMALL ELEMENT OF/CONTAINS WITH VERTICAL BAR AT
+\&                          END OF HORIZONTAL STROKE
+\& ⋶  ⋽    U+22F6, U+22FD   ELEMENT OF/CONTAINS WITH OVERBAR
+\& ⋷  ⋾    U+22F7, U+22FE   SMALL ELEMENT OF/CONTAINS WITH OVERBAR
+\& ⌈  ⌉    U+2308, U+2309   LEFT/RIGHT CEILING
+\& ⌊  ⌋    U+230A, U+230B   LEFT/RIGHT FLOOR
+\& ⌦  ⌫    U+2326, U+232B   ERASE TO THE RIGHT/LEFT
+\& 〈 〉   U+2329, U+232A   LEFT/RIGHT\-POINTING ANGLE BRACKET
+\& ⍈  ⍇    U+2348, U+2347   APL FUNCTIONAL SYMBOL QUAD RIGHT/LEFTWARDS ARROW
+\& ⏩ ⏪   U+23E9, U+23EA   BLACK RIGHT/LEFT\-POINTING DOUBLE TRIANGLE
+\& ⏭  ⏮    U+23ED, U+23EE   BLACK RIGHT/LEFT\-POINTING DOUBLE TRIANGLE WITH
+\&                          VERTICAL BAR
+\& ☛  ☚    U+261B, U+261A   BLACK RIGHT/LEFT POINTING INDEX
+\& ☞  ☜    U+261E, U+261C   WHITE RIGHT/LEFT POINTING INDEX
+\& ⚞  ⚟    U+269E, U+269F   THREE LINES CONVERGING RIGHT/LEFT
+\& ❨  ❩    U+2768, U+2769   MEDIUM LEFT/RIGHT PARENTHESIS ORNAMENT
+\& ❪  ❫    U+276A, U+276B   MEDIUM FLATTENED LEFT/RIGHT PARENTHESIS ORNAMENT
+\& ❬  ❭    U+276C, U+276D   MEDIUM LEFT/RIGHT\-POINTING ANGLE BRACKET
+\&                          ORNAMENT
+\& ❮  ❯    U+276E, U+276F   HEAVY LEFT/RIGHT\-POINTING ANGLE QUOTATION MARK
+\&                          ORNAMENT
+\& ❰  ❱    U+2770, U+2771   HEAVY LEFT/RIGHT\-POINTING ANGLE BRACKET ORNAMENT
+\& ❲  ❳    U+2772, U+2773   LIGHT LEFT/RIGHT TORTOISE SHELL BRACKET ORNAMENT
+\& ❴  ❵    U+2774, U+2775   MEDIUM LEFT/RIGHT CURLY BRACKET ORNAMENT
+\& ⟃  ⟄    U+27C3, U+27C4   OPEN SUBSET/SUPERSET
+\& ⟅  ⟆    U+27C5, U+27C6   LEFT/RIGHT S\-SHAPED BAG DELIMITER
+\& ⟈  ⟉    U+27C8, U+27C9   REVERSE SOLIDUS PRECEDING SUBSET,  SUPERSET
+\&                          PRECEDING SOLIDUS
+\& ⟞  ⟝    U+27DE, U+27DD   LONG LEFT/RIGHT TACK
+\& ⟦  ⟧    U+27E6, U+27E7   MATHEMATICAL LEFT/RIGHT WHITE SQUARE BRACKET
+\& ⟨  ⟩    U+27E8, U+27E9   MATHEMATICAL LEFT/RIGHT ANGLE BRACKET
+\& ⟪  ⟫    U+27EA, U+27EB   MATHEMATICAL LEFT/RIGHT DOUBLE ANGLE BRACKET
+\& ⟬  ⟭    U+27EC, U+27ED   MATHEMATICAL LEFT/RIGHT WHITE TORTOISE SHELL
+\&                          BRACKET
+\& ⟮  ⟯    U+27EE, U+27EF   MATHEMATICAL LEFT/RIGHT FLATTENED PARENTHESIS
+\& ⟴  ⬲    U+27F4, U+2B32   RIGHT/LEFT ARROW WITH CIRCLED PLUS
+\& ⟶  ⟵    U+27F6, U+27F5   LONG RIGHT/LEFTWARDS ARROW
+\& ⟹  ⟸    U+27F9, U+27F8   LONG RIGHT/LEFTWARDS DOUBLE ARROW
+\& ⟼  ⟻    U+27FC, U+27FB   LONG RIGHT/LEFTWARDS ARROW FROM BAR
+\& ⟾  ⟽    U+27FE, U+27FD   LONG RIGHT/LEFTWARDS DOUBLE ARROW FROM BAR
+\& ⟿  ⬳    U+27FF, U+2B33   LONG RIGHT/LEFTWARDS SQUIGGLE ARROW
+\& ⤀  ⬴    U+2900, U+2B34   RIGHT/LEFTWARDS TWO\-HEADED ARROW WITH VERTICAL
+\&                          STROKE
+\& ⤁  ⬵    U+2901, U+2B35   RIGHT/LEFTWARDS TWO\-HEADED ARROW WITH DOUBLE
+\&                          VERTICAL STROKE
+\& ⤃  ⤂    U+2903, U+2902   RIGHT/LEFTWARDS DOUBLE ARROW WITH VERTICAL
+\&                          STROKE
+\& ⤅  ⬶    U+2905, U+2B36   RIGHT/LEFTWARDS TWO\-HEADED ARROW FROM BAR
+\& ⤇  ⤆    U+2907, U+2906   RIGHT/LEFTWARDS DOUBLE ARROW FROM BAR
+\& ⤍  ⤌    U+290D, U+290C   RIGHT/LEFTWARDS DOUBLE DASH ARROW
+\& ⤏  ⤎    U+290F, U+290E   RIGHT/LEFTWARDS TRIPLE DASH ARROW
+\& ⤐  ⬷    U+2910, U+2B37   RIGHT/LEFTWARDS TWO\-HEADED TRIPLE DASH ARROW
+\& ⤑  ⬸    U+2911, U+2B38   RIGHT/LEFTWARDS ARROW WITH DOTTED STEM
+\& ⤔  ⬹    U+2914, U+2B39   RIGHT/LEFTWARDS ARROW WITH TAIL WITH VERTICAL
+\&                          STROKE
+\& ⤕  ⬺    U+2915, U+2B3A   RIGHT/LEFTWARDS ARROW WITH TAIL WITH DOUBLE
+\&                          VERTICAL STROKE
+\& ⤖  ⬻    U+2916, U+2B3B   RIGHT/LEFTWARDS TWO\-HEADED ARROW WITH TAIL
+\& ⤗  ⬼    U+2917, U+2B3C   RIGHT/LEFTWARDS TWO\-HEADED ARROW WITH TAIL WITH
+\&                          VERTICAL STROKE
+\& ⤘  ⬽    U+2918, U+2B3D   RIGHT/LEFTWARDS TWO\-HEADED ARROW WITH TAIL WITH
+\&                          DOUBLE VERTICAL STROKE
+\& ⤚  ⤙    U+291A, U+2919   RIGHT/LEFTWARDS ARROW\-TAIL
+\& ⤜  ⤛    U+291C, U+291B   RIGHT/LEFTWARDS DOUBLE ARROW\-TAIL
+\& ⤞  ⤝    U+291E, U+291D   RIGHT/LEFTWARDS ARROW TO BLACK DIAMOND
+\& ⤠  ⤟    U+2920, U+291F   RIGHT/LEFTWARDS ARROW FROM BAR TO BLACK DIAMOND
+\& ⤳  ⬿    U+2933, U+2B3F   WAVE ARROW POINTING DIRECTLY RIGHT/LEFT
+\& ⤷  ⤶    U+2937, U+2936   ARROW POINTING DOWNWARDS THEN CURVING RIGHT/
+\&                          LEFTWARDS
+\& ⥅  ⥆    U+2945, U+2946   RIGHT/LEFTWARDS ARROW WITH PLUS BELOW
+\& ⥇  ⬾    U+2947, U+2B3E   RIGHT/LEFTWARDS ARROW THROUGH X
+\& ⥓  ⥒    U+2953, U+2952   RIGHT/LEFTWARDS HARPOON WITH BARB UP TO BAR
+\& ⥗  ⥖    U+2957, U+2956   RIGHT/LEFTWARDS HARPOON WITH BARB DOWN TO BAR
+\& ⥛  ⥚    U+295B, U+295A   RIGHT/LEFTWARDS HARPOON WITH BARB UP FROM BAR
+\& ⥟  ⥞    U+295F, U+295E   RIGHT/LEFTWARDS HARPOON WITH BARB DOWN FROM BAR
+\& ⥤  ⥢    U+2964, U+2962   RIGHT/LEFTWARDS HARPOON WITH BARB UP ABOVE
+\&                          RIGHT/LEFTWARDS HARPOON WITH BARB DOWN
+\& ⥬  ⥪    U+296C, U+296A   RIGHT/LEFTWARDS HARPOON WITH BARB UP ABOVE LONG
+\&                          DASH
+\& ⥭  ⥫    U+296D, U+296B   RIGHT/LEFTWARDS HARPOON WITH BARB DOWN BELOW
+\&                          LONG DASH
+\& ⥱  ⭀    U+2971, U+2B40   EQUALS SIGN ABOVE RIGHT/LEFTWARDS ARROW
+\& ⥲  ⭁    U+2972, U+2B41   TILDE OPERATOR ABOVE RIGHTWARDS ARROW,  REVERSE
+\&                          TILDE OPERATOR ABOVE LEFTWARDS ARROW
+\& ⥴  ⭋    U+2974, U+2B4B   RIGHTWARDS ARROW ABOVE TILDE OPERATOR,
+\&                          LEFTWARDS ARROW ABOVE REVERSE TILDE OPERATOR
+\& ⥵  ⭂    U+2975, U+2B42   RIGHTWARDS ARROW ABOVE ALMOST EQUAL TO,
+\&                          LEFTWARDS ARROW ABOVE REVERSE ALMOST EQUAL TO
+\& ⥹  ⥻    U+2979, U+297B   SUBSET/SUPERSET ABOVE RIGHT/LEFTWARDS ARROW
+\& ⦃  ⦄    U+2983, U+2984   LEFT/RIGHT WHITE CURLY BRACKET
+\& ⦅  ⦆    U+2985, U+2986   LEFT/RIGHT WHITE PARENTHESIS
+\& ⦇  ⦈    U+2987, U+2988   Z NOTATION LEFT/RIGHT IMAGE BRACKET
+\& ⦉  ⦊    U+2989, U+298A   Z NOTATION LEFT/RIGHT BINDING BRACKET
+\& ⦋  ⦌    U+298B, U+298C   LEFT/RIGHT SQUARE BRACKET WITH UNDERBAR
+\& ⦍  ⦐    U+298D, U+2990   LEFT/RIGHT SQUARE BRACKET WITH TICK IN TOP
+\&                          CORNER
+\& ⦏  ⦎    U+298F, U+298E   LEFT/RIGHT SQUARE BRACKET WITH TICK IN BOTTOM
+\&                          CORNER
+\& ⦑  ⦒    U+2991, U+2992   LEFT/RIGHT ANGLE BRACKET WITH DOT
+\& ⦓  ⦔    U+2993, U+2994   LEFT/RIGHT ARC LESS\-THAN/GREATER\-THAN BRACKET
+\& ⦕  ⦖    U+2995, U+2996   DOUBLE LEFT/RIGHT ARC GREATER\-THAN/LESS\-THAN
+\&                          BRACKET
+\& ⦗  ⦘    U+2997, U+2998   LEFT/RIGHT BLACK TORTOISE SHELL BRACKET
+\& ⦨  ⦩    U+29A8, U+29A9   MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW
+\&                          POINTING UP AND RIGHT/LEFT
+\& ⦪  ⦫    U+29AA, U+29AB   MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW
+\&                          POINTING DOWN AND RIGHT/LEFT
+\& ⦳  ⦴    U+29B3, U+29B4   EMPTY SET WITH RIGHT/LEFT ARROW ABOVE
+\& ⧀  ⧁    U+29C0, U+29C1   CIRCLED LESS\-THAN/GREATER\-THAN
+\& ⧘  ⧙    U+29D8, U+29D9   LEFT/RIGHT WIGGLY FENCE
+\& ⧚  ⧛    U+29DA, U+29DB   LEFT/RIGHT DOUBLE WIGGLY FENCE
+\& ⧼  ⧽    U+29FC, U+29FD   LEFT/RIGHT\-POINTING CURVED ANGLE BRACKET
+\& ⩹  ⩺    U+2A79, U+2A7A   LESS\-THAN/GREATER\-THAN WITH CIRCLE INSIDE
+\& ⩻  ⩼    U+2A7B, U+2A7C   LESS\-THAN/GREATER\-THAN WITH QUESTION MARK ABOVE
+\& ⩽  ⩾    U+2A7D, U+2A7E   LESS\-THAN/GREATER\-THAN OR SLANTED EQUAL TO
+\& ⩿  ⪀    U+2A7F, U+2A80   LESS\-THAN/GREATER\-THAN OR SLANTED EQUAL TO WITH
+\&                          DOT INSIDE
+\& ⪁  ⪂    U+2A81, U+2A82   LESS\-THAN/GREATER\-THAN OR SLANTED EQUAL TO WITH
+\&                          DOT ABOVE
+\& ⪃  ⪄    U+2A83, U+2A84   LESS\-THAN/GREATER\-THAN OR SLANTED EQUAL TO WITH
+\&                          DOT ABOVE RIGHT/LEFT
+\& ⪅  ⪆    U+2A85, U+2A86   LESS\-THAN/GREATER\-THAN OR APPROXIMATE
+\& ⪇  ⪈    U+2A87, U+2A88   LESS\-THAN/GREATER\-THAN AND SINGLE\-LINE NOT
+\&                          EQUAL TO
+\& ⪉  ⪊    U+2A89, U+2A8A   LESS\-THAN/GREATER\-THAN AND NOT APPROXIMATE
+\& ⪍  ⪎    U+2A8D, U+2A8E   LESS\-THAN/GREATER\-THAN ABOVE SIMILAR OR EQUAL
+\& ⪕  ⪖    U+2A95, U+2A96   SLANTED EQUAL TO OR LESS\-THAN/GREATER\-THAN
+\& ⪗  ⪘    U+2A97, U+2A98   SLANTED EQUAL TO OR LESS\-THAN/GREATER\-THAN WITH
+\&                          DOT INSIDE
+\& ⪙  ⪚    U+2A99, U+2A9A   DOUBLE\-LINE EQUAL TO OR LESS\-THAN/GREATER\-THAN
+\& ⪛  ⪜    U+2A9B, U+2A9C   DOUBLE\-LINE SLANTED EQUAL TO OR LESS\-THAN/
+\&                          GREATER\-THAN
+\& ⪝  ⪞    U+2A9D, U+2A9E   SIMILAR OR LESS\-THAN/GREATER\-THAN
+\& ⪟  ⪠    U+2A9F, U+2AA0   SIMILAR ABOVE LESS\-THAN/GREATER\-THAN ABOVE
+\&                          EQUALS SIGN
+\& ⪡  ⪢    U+2AA1, U+2AA2   DOUBLE NESTED LESS\-THAN/GREATER\-THAN
+\& ⪦  ⪧    U+2AA6, U+2AA7   LESS\-THAN/GREATER\-THAN CLOSED BY CURVE
+\& ⪨  ⪩    U+2AA8, U+2AA9   LESS\-THAN/GREATER\-THAN CLOSED BY CURVE ABOVE
+\&                          SLANTED EQUAL
+\& ⪪  ⪫    U+2AAA, U+2AAB   SMALLER THAN/LARGER THAN
+\& ⪬  ⪭    U+2AAC, U+2AAD   SMALLER THAN/LARGER THAN OR EQUAL TO
+\& ⪯  ⪰    U+2AAF, U+2AB0   PRECEDES/SUCCEEDS ABOVE SINGLE\-LINE EQUALS SIGN
+\& ⪱  ⪲    U+2AB1, U+2AB2   PRECEDES/SUCCEEDS ABOVE SINGLE\-LINE NOT EQUAL TO
+\& ⪳  ⪴    U+2AB3, U+2AB4   PRECEDES/SUCCEEDS ABOVE EQUALS SIGN
+\& ⪵  ⪶    U+2AB5, U+2AB6   PRECEDES/SUCCEEDS ABOVE NOT EQUAL TO
+\& ⪷  ⪸    U+2AB7, U+2AB8   PRECEDES/SUCCEEDS ABOVE ALMOST EQUAL TO
+\& ⪹  ⪺    U+2AB9, U+2ABA   PRECEDES/SUCCEEDS ABOVE NOT ALMOST EQUAL TO
+\& ⪻  ⪼    U+2ABB, U+2ABC   DOUBLE PRECEDES/SUCCEEDS
+\& ⪽  ⪾    U+2ABD, U+2ABE   SUBSET/SUPERSET WITH DOT
+\& ⪿  ⫀    U+2ABF, U+2AC0   SUBSET/SUPERSET WITH PLUS SIGN BELOW
+\& ⫁  ⫂    U+2AC1, U+2AC2   SUBSET/SUPERSET WITH MULTIPLICATION SIGN BELOW
+\& ⫃  ⫄    U+2AC3, U+2AC4   SUBSET/SUPERSET OF OR EQUAL TO WITH DOT ABOVE
+\& ⫅  ⫆    U+2AC5, U+2AC6   SUBSET/SUPERSET OF ABOVE EQUALS SIGN
+\& ⫇  ⫈    U+2AC7, U+2AC8   SUBSET/SUPERSET OF ABOVE TILDE OPERATOR
+\& ⫉  ⫊    U+2AC9, U+2ACA   SUBSET/SUPERSET OF ABOVE ALMOST EQUAL TO
+\& ⫋  ⫌    U+2ACB, U+2ACC   SUBSET/SUPERSET OF ABOVE NOT EQUAL TO
+\& ⫏  ⫐    U+2ACF, U+2AD0   CLOSED SUBSET/SUPERSET
+\& ⫑  ⫒    U+2AD1, U+2AD2   CLOSED SUBSET/SUPERSET OR EQUAL TO
+\& ⫕  ⫖    U+2AD5, U+2AD6   SUBSET/SUPERSET ABOVE SUBSET/SUPERSET
+\& ⫥  ⊫    U+2AE5, U+22AB   DOUBLE VERTICAL BAR DOUBLE LEFT/RIGHT TURNSTILE
+\& ⫷  ⫸    U+2AF7, U+2AF8   TRIPLE NESTED LESS\-THAN/GREATER\-THAN
+\& ⫹  ⫺    U+2AF9, U+2AFA   DOUBLE\-LINE SLANTED LESS\-THAN/GREATER\-THAN OR
+\&                          EQUAL TO
+\& ⭆  ⭅    U+2B46, U+2B45   RIGHT/LEFTWARDS QUADRUPLE ARROW
+\& ⭇  ⭉    U+2B47, U+2B49   REVERSE TILDE OPERATOR ABOVE RIGHTWARDS ARROW,
+\&                          TILDE OPERATOR ABOVE LEFTWARDS ARROW
+\& ⭈  ⭊    U+2B48, U+2B4A   RIGHTWARDS ARROW ABOVE REVERSE ALMOST EQUAL
+\&                          TO,  LEFTWARDS ARROW ABOVE ALMOST EQUAL TO
+\& ⭌  ⥳    U+2B4C, U+2973   RIGHTWARDS ARROW ABOVE REVERSE TILDE OPERATOR,
+\&                          LEFTWARDS ARROW ABOVE TILDE OPERATOR
+\& ⭢  ⭠    U+2B62, U+2B60   RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW
+\& ⭬  ⭪    U+2B6C, U+2B6A   RIGHT/LEFTWARDS TRIANGLE\-HEADED DASHED ARROW
+\& ⭲  ⭰    U+2B72, U+2B70   RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW TO BAR
+\& ⭼  ⭺    U+2B7C, U+2B7A   RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW WITH
+\&                          DOUBLE VERTICAL STROKE
+\& ⮆  ⮄    U+2B86, U+2B84   RIGHT/LEFTWARDS TRIANGLE\-HEADED PAIRED ARROWS
+\& ⮊  ⮈    U+2B8A, U+2B88   RIGHT/LEFTWARDS BLACK CIRCLED WHITE ARROW
+\& ⮕  ⬅    U+2B95, U+2B05   RIGHT/LEFTWARDS BLACK ARROW
+\& ⮚  ⮘    U+2B9A, U+2B98   THREE\-D TOP\-LIGHTED RIGHT/LEFTWARDS EQUILATERAL
+\&                          ARROWHEAD
+\& ⮞  ⮜    U+2B9E, U+2B9C   BLACK RIGHT/LEFTWARDS EQUILATERAL ARROWHEAD
+\& ⮡  ⮠    U+2BA1, U+2BA0   DOWNWARDS TRIANGLE\-HEADED ARROW WITH LONG TIP
+\&                          RIGHT/LEFTWARDS
+\& ⮣  ⮢    U+2BA3, U+2BA2   UPWARDS TRIANGLE\-HEADED ARROW WITH LONG TIP
+\&                          RIGHT/LEFTWARDS
+\& ⮩  ⮨    U+2BA9, U+2BA8   BLACK CURVED DOWNWARDS AND RIGHT/LEFTWARDS ARROW
+\& ⮫  ⮪    U+2BAB, U+2BAA   BLACK CURVED UPWARDS AND RIGHT/LEFTWARDS ARROW
+\& ⮱  ⮰    U+2BB1, U+2BB0   RIBBON ARROW DOWN RIGHT/LEFT
+\& ⮳  ⮲    U+2BB3, U+2BB2   RIBBON ARROW UP RIGHT/LEFT
+\& ⯮  ⯬    U+2BEE, U+2BEC   RIGHT/LEFTWARDS TWO\-HEADED ARROW WITH TRIANGLE
+\&                          ARROWHEADS
+\& ⸂  ⸃    U+2E02, U+2E03   LEFT/RIGHT SUBSTITUTION BRACKET
+\& ⸃  ⸂    U+2E03, U+2E02   RIGHT/LEFT SUBSTITUTION BRACKET
+\& ⸄  ⸅    U+2E04, U+2E05   LEFT/RIGHT DOTTED SUBSTITUTION BRACKET
+\& ⸅  ⸄    U+2E05, U+2E04   RIGHT/LEFT DOTTED SUBSTITUTION BRACKET
+\& ⸉  ⸊    U+2E09, U+2E0A   LEFT/RIGHT TRANSPOSITION BRACKET
+\& ⸊  ⸉    U+2E0A, U+2E09   RIGHT/LEFT TRANSPOSITION BRACKET
+\& ⸌  ⸍    U+2E0C, U+2E0D   LEFT/RIGHT RAISED OMISSION BRACKET
+\& ⸍  ⸌    U+2E0D, U+2E0C   RIGHT/LEFT RAISED OMISSION BRACKET
+\& ⸑  ⸐    U+2E11, U+2E10   REVERSED FORKED PARAGRAPHOS,  FORKED PARAGRAPHOS
+\& ⸜  ⸝    U+2E1C, U+2E1D   LEFT/RIGHT LOW PARAPHRASE BRACKET
+\& ⸝  ⸜    U+2E1D, U+2E1C   RIGHT/LEFT LOW PARAPHRASE BRACKET
+\& ⸠  ⸡    U+2E20, U+2E21   LEFT/RIGHT VERTICAL BAR WITH QUILL
+\& ⸡  ⸠    U+2E21, U+2E20   RIGHT/LEFT VERTICAL BAR WITH QUILL
+\& ⸢  ⸣    U+2E22, U+2E23   TOP LEFT/RIGHT HALF BRACKET
+\& ⸤  ⸥    U+2E24, U+2E25   BOTTOM LEFT/RIGHT HALF BRACKET
+\& ⸦  ⸧    U+2E26, U+2E27   LEFT/RIGHT SIDEWAYS U BRACKET
+\& ⸨  ⸩    U+2E28, U+2E29   LEFT/RIGHT DOUBLE PARENTHESIS
+\& ⸶  ⸷    U+2E36, U+2E37   DAGGER WITH LEFT/RIGHT GUARD
+\& ⹂  „    U+2E42, U+201E   DOUBLE LOW\-REVERSED\-9 QUOTATION MARK,  DOUBLE
+\&                          LOW\-9 QUOTATION MARK
+\& ⹕  ⹖    U+2E55, U+2E56   LEFT/RIGHT SQUARE BRACKET WITH STROKE
+\& ⹗  ⹘    U+2E57, U+2E58   LEFT/RIGHT SQUARE BRACKET WITH DOUBLE STROKE
+\& ⹙  ⹚    U+2E59, U+2E5A   TOP HALF LEFT/RIGHT PARENTHESIS
+\& ⹛  ⹜    U+2E5B, U+2E5C   BOTTOM HALF LEFT/RIGHT PARENTHESIS
+\& 〈 〉   U+3008, U+3009   LEFT/RIGHT ANGLE BRACKET
+\& 《 》   U+300A, U+300B   LEFT/RIGHT DOUBLE ANGLE BRACKET
+\& 「 」   U+300C, U+300D   LEFT/RIGHT CORNER BRACKET
+\& 『 』   U+300E, U+300F   LEFT/RIGHT WHITE CORNER BRACKET
+\& 【 】   U+3010, U+3011   LEFT/RIGHT BLACK LENTICULAR BRACKET
+\& 〔 〕   U+3014, U+3015   LEFT/RIGHT TORTOISE SHELL BRACKET
+\& 〖 〗   U+3016, U+3017   LEFT/RIGHT WHITE LENTICULAR BRACKET
+\& 〘 〙   U+3018, U+3019   LEFT/RIGHT WHITE TORTOISE SHELL BRACKET
+\& 〚 〛   U+301A, U+301B   LEFT/RIGHT WHITE SQUARE BRACKET
+\& 〝 〞   U+301D, U+301E   REVERSED DOUBLE PRIME QUOTATION MARK,  DOUBLE
+\&                          PRIME QUOTATION MARK
+\& ꧁  ꧂    U+A9C1, U+A9C2   JAVANESE LEFT/RIGHT RERENGGAN
+\& ﴾  ﴿    U+FD3E, U+FD3F   ORNATE LEFT/RIGHT PARENTHESIS
+\& ﹙ ﹚   U+FE59, U+FE5A   SMALL LEFT/RIGHT PARENTHESIS
+\& ﹛ ﹜   U+FE5B, U+FE5C   SMALL LEFT/RIGHT CURLY BRACKET
+\& ﹝ ﹞   U+FE5D, U+FE5E   SMALL LEFT/RIGHT TORTOISE SHELL BRACKET
+\& ﹤ ﹥   U+FE64, U+FE65   SMALL LESS\-THAN/GREATER\-THAN SIGN
+\& （ ）   U+FF08, U+FF09   FULLWIDTH LEFT/RIGHT PARENTHESIS
+\& ＜ ＞   U+FF1C, U+FF1E   FULLWIDTH LESS\-THAN/GREATER\-THAN SIGN
+\& ［ ］   U+FF3B, U+FF3D   FULLWIDTH LEFT/RIGHT SQUARE BRACKET
+\& ｛ ｝   U+FF5B, U+FF5D   FULLWIDTH LEFT/RIGHT CURLY BRACKET
+\& ｟ ｠   U+FF5F, U+FF60   FULLWIDTH LEFT/RIGHT WHITE PARENTHESIS
+\& ｢  ｣    U+FF62, U+FF63   HALFWIDTH LEFT/RIGHT CORNER BRACKET
+\& ￫  ￩    U+FFEB, U+FFE9   HALFWIDTH RIGHT/LEFTWARDS ARROW
+\& 𝄃  𝄂    U+1D103, U+1D102 MUSICAL SYMBOL REVERSE FINAL BARLINE,  MUSICAL
+\&                          SYMBOL FINAL BARLINE
+\& 𝄆  𝄇    U+1D106, U+1D107 MUSICAL SYMBOL LEFT/RIGHT REPEAT SIGN
+\& 👉 👈   U+1F449, U+1F448 WHITE RIGHT/LEFT POINTING BACKHAND INDEX
+\& 🔈 🕨    U+1F508, U+1F568 SPEAKER,  RIGHT SPEAKER
+\& 🔉 🕩    U+1F509, U+1F569 SPEAKER WITH ONE SOUND WAVE,  RIGHT SPEAKER WITH
+\&                          ONE SOUND WAVE
+\& 🔊 🕪    U+1F50A, U+1F56A SPEAKER WITH THREE SOUND WAVES,  RIGHT SPEAKER
+\&                          WITH THREE SOUND WAVES
+\& 🕻  🕽    U+1F57B, U+1F57D LEFT/RIGHT HAND TELEPHONE RECEIVER
+\& 🖙  🖘    U+1F599, U+1F598 SIDEWAYS WHITE RIGHT/LEFT POINTING INDEX
+\& 🖛  🖚    U+1F59B, U+1F59A SIDEWAYS BLACK RIGHT/LEFT POINTING INDEX
+\& 🖝  🖜    U+1F59D, U+1F59C BLACK RIGHT/LEFT POINTING BACKHAND INDEX
+\& 🗦  🗧    U+1F5E6, U+1F5E7 THREE RAYS LEFT/RIGHT
+\& 🠂  🠀    U+1F802, U+1F800 RIGHT/LEFTWARDS ARROW WITH SMALL TRIANGLE
+\&                          ARROWHEAD
+\& 🠆  🠄    U+1F806, U+1F804 RIGHT/LEFTWARDS ARROW WITH MEDIUM TRIANGLE
+\&                          ARROWHEAD
+\& 🠊  🠈    U+1F80A, U+1F808 RIGHT/LEFTWARDS ARROW WITH LARGE TRIANGLE
+\&                          ARROWHEAD
+\& 🠒  🠐    U+1F812, U+1F810 RIGHT/LEFTWARDS ARROW WITH SMALL EQUILATERAL
+\&                          ARROWHEAD
+\& 🠖  🠔    U+1F816, U+1F814 RIGHT/LEFTWARDS ARROW WITH EQUILATERAL ARROWHEAD
+\& 🠚  🠘    U+1F81A, U+1F818 HEAVY RIGHT/LEFTWARDS ARROW WITH EQUILATERAL
+\&                          ARROWHEAD
+\& 🠞  🠜    U+1F81E, U+1F81C HEAVY RIGHT/LEFTWARDS ARROW WITH LARGE
+\&                          EQUILATERAL ARROWHEAD
+\& 🠢  🠠    U+1F822, U+1F820 RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW WITH
+\&                          NARROW SHAFT
+\& 🠦  🠤    U+1F826, U+1F824 RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW WITH
+\&                          MEDIUM SHAFT
+\& 🠪  🠨    U+1F82A, U+1F828 RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW WITH BOLD
+\&                          SHAFT
+\& 🠮  🠬    U+1F82E, U+1F82C RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW WITH
+\&                          HEAVY SHAFT
+\& 🠲  🠰    U+1F832, U+1F830 RIGHT/LEFTWARDS TRIANGLE\-HEADED ARROW WITH VERY
+\&                          HEAVY SHAFT
+\& 🠶  🠴    U+1F836, U+1F834 RIGHT/LEFTWARDS FINGER\-POST ARROW
+\& 🠺  🠸    U+1F83A, U+1F838 RIGHT/LEFTWARDS SQUARED ARROW
+\& 🠾  🠼    U+1F83E, U+1F83C RIGHT/LEFTWARDS COMPRESSED ARROW
+\& 🡂  🡀    U+1F842, U+1F840 RIGHT/LEFTWARDS HEAVY COMPRESSED ARROW
+\& 🡆  🡄    U+1F846, U+1F844 RIGHT/LEFTWARDS HEAVY ARROW
+\& 🡒  🡐    U+1F852, U+1F850 RIGHT/LEFTWARDS SANS\-SERIF ARROW
+\& 🡢  🡠    U+1F862, U+1F860 WIDE\-HEADED RIGHT/LEFTWARDS LIGHT BARB ARROW
+\& 🡪  🡨    U+1F86A, U+1F868 WIDE\-HEADED RIGHT/LEFTWARDS BARB ARROW
+\& 🡲  🡰    U+1F872, U+1F870 WIDE\-HEADED RIGHT/LEFTWARDS MEDIUM BARB ARROW
+\& 🡺  🡸    U+1F87A, U+1F878 WIDE\-HEADED RIGHT/LEFTWARDS HEAVY BARB ARROW
+\& 🢂  🢀    U+1F882, U+1F880 WIDE\-HEADED RIGHT/LEFTWARDS VERY HEAVY BARB
+\&                          ARROW
+\& 🢒  🢐    U+1F892, U+1F890 RIGHT/LEFTWARDS TRIANGLE ARROWHEAD
+\& 🢖  🢔    U+1F896, U+1F894 RIGHT/LEFTWARDS WHITE ARROW WITHIN TRIANGLE
+\&                          ARROWHEAD
+\& 🢚  🢘    U+1F89A, U+1F898 RIGHT/LEFTWARDS ARROW WITH NOTCHED TAIL
+\& 🢡  🢠    U+1F8A1, U+1F8A0 RIGHTWARDS BOTTOM SHADED WHITE ARROW,
+\&                          LEFTWARDS BOTTOM\-SHADED WHITE ARROW
+\& 🢣  🢢    U+1F8A3, U+1F8A2 RIGHT/LEFTWARDS TOP SHADED WHITE ARROW
+\& 🢥  🢦    U+1F8A5, U+1F8A6 RIGHT/LEFTWARDS RIGHT\-SHADED WHITE ARROW
+\& 🢧  🢤    U+1F8A7, U+1F8A4 RIGHT/LEFTWARDS LEFT\-SHADED WHITE ARROW
+\& 🢩  🢨    U+1F8A9, U+1F8A8 RIGHT/LEFTWARDS BACK\-TILTED SHADOWED WHITE ARROW
+\& 🢫  🢪    U+1F8AB, U+1F8AA RIGHT/LEFTWARDS FRONT\-TILTED SHADOWED WHITE
+\&                          ARROW
+.Ve
+.SS "The 'module_true' feature"
+.IX Subsection "The 'module_true' feature"
+This feature removes the need to return a true value at the end of a module
+loaded with \f(CW\*(C`require\*(C'\fR or \f(CW\*(C`use\*(C'\fR. Any errors during compilation will cause
+failures, but reaching the end of the module when this feature is in effect
+will prevent \f(CW\*(C`perl\*(C'\fR from throwing an exception that the module "did not return
+a true value".
+.SS "The 'class' feature"
+.IX Subsection "The 'class' feature"
+\&\fBWARNING\fR: This feature is still experimental and the implementation may
+change or be removed in future versions of Perl.  For this reason, Perl will
+warn when you use the feature, unless you have explicitly disabled the warning:
+.PP
+.Vb 1
+\&    no warnings "experimental::class";
+.Ve
+.PP
+This feature enables the \f(CW\*(C`class\*(C'\fR block syntax and other associated keywords
+which implement the "new" object system, previously codenamed "Corinna".
+.SH "FEATURE BUNDLES"
+.IX Header "FEATURE BUNDLES"
+It's possible to load multiple features together, using
+a \fIfeature bundle\fR.  The name of a feature bundle is prefixed with
+a colon, to distinguish it from an actual feature.
+.PP
+.Vb 1
+\&  use feature ":5.10";
+.Ve
+.PP
+The following feature bundles are available:
+.PP
+.Vb 4
+\&  bundle    features included
+\&  \-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
+\&  :default  indirect multidimensional
+\&            bareword_filehandles
+\&
+\&  :5.10     bareword_filehandles indirect
+\&            multidimensional say state switch
+\&
+\&  :5.12     bareword_filehandles indirect
+\&            multidimensional say state switch
+\&            unicode_strings
+\&
+\&  :5.14     bareword_filehandles indirect
+\&            multidimensional say state switch
+\&            unicode_strings
+\&
+\&  :5.16     bareword_filehandles current_sub evalbytes
+\&            fc indirect multidimensional say state
+\&            switch unicode_eval unicode_strings
+\&
+\&  :5.18     bareword_filehandles current_sub evalbytes
+\&            fc indirect multidimensional say state
+\&            switch unicode_eval unicode_strings
+\&
+\&  :5.20     bareword_filehandles current_sub evalbytes
+\&            fc indirect multidimensional say state
+\&            switch unicode_eval unicode_strings
+\&
+\&  :5.22     bareword_filehandles current_sub evalbytes
+\&            fc indirect multidimensional say state
+\&            switch unicode_eval unicode_strings
+\&
+\&  :5.24     bareword_filehandles current_sub evalbytes
+\&            fc indirect multidimensional postderef_qq
+\&            say state switch unicode_eval
+\&            unicode_strings
+\&
+\&  :5.26     bareword_filehandles current_sub evalbytes
+\&            fc indirect multidimensional postderef_qq
+\&            say state switch unicode_eval
+\&            unicode_strings
+\&
+\&  :5.28     bareword_filehandles bitwise current_sub
+\&            evalbytes fc indirect multidimensional
+\&            postderef_qq say state switch unicode_eval
+\&            unicode_strings
+\&
+\&  :5.30     bareword_filehandles bitwise current_sub
+\&            evalbytes fc indirect multidimensional
+\&            postderef_qq say state switch unicode_eval
+\&            unicode_strings
+\&
+\&  :5.32     bareword_filehandles bitwise current_sub
+\&            evalbytes fc indirect multidimensional
+\&            postderef_qq say state switch unicode_eval
+\&            unicode_strings
+\&
+\&  :5.34     bareword_filehandles bitwise current_sub
+\&            evalbytes fc indirect multidimensional
+\&            postderef_qq say state switch unicode_eval
+\&            unicode_strings
+\&
+\&  :5.36     bareword_filehandles bitwise current_sub
+\&            evalbytes fc isa postderef_qq say signatures
+\&            state unicode_eval unicode_strings
+\&
+\&  :5.38     bitwise current_sub evalbytes fc isa
+\&            module_true postderef_qq say signatures
+\&            state unicode_eval unicode_strings
+.Ve
+.PP
+The \f(CW\*(C`:default\*(C'\fR bundle represents the feature set that is enabled before
+any \f(CW\*(C`use feature\*(C'\fR or \f(CW\*(C`no feature\*(C'\fR declaration.
+.PP
+Specifying sub-versions such as the \f(CW0\fR in \f(CW5.14.0\fR in feature bundles has
+no effect.  Feature bundles are guaranteed to be the same for all sub-versions.
+.PP
+.Vb 2
+\&  use feature ":5.14.0";    # same as ":5.14"
+\&  use feature ":5.14.1";    # same as ":5.14"
+.Ve
+.SH "IMPLICIT LOADING"
+.IX Header "IMPLICIT LOADING"
+Instead of loading feature bundles by name, it is easier to let Perl do
+implicit loading of a feature bundle for you.
+.PP
+There are two ways to load the \f(CW\*(C`feature\*(C'\fR pragma implicitly:
+.IP \(bu 4
+By using the \f(CW\*(C`\-E\*(C'\fR switch on the Perl command-line instead of \f(CW\*(C`\-e\*(C'\fR.
+That will enable the feature bundle for that version of Perl in the
+main compilation unit (that is, the one-liner that follows \f(CW\*(C`\-E\*(C'\fR).
+.IP \(bu 4
+By explicitly requiring a minimum Perl version number for your program, with
+the \f(CW\*(C`use VERSION\*(C'\fR construct.  That is,
+.Sp
+.Vb 1
+\&    use v5.36.0;
+.Ve
+.Sp
+will do an implicit
+.Sp
+.Vb 2
+\&    no feature \*(Aq:all\*(Aq;
+\&    use feature \*(Aq:5.36\*(Aq;
+.Ve
+.Sp
+and so on.  Note how the trailing sub-version
+is automatically stripped from the
+version.
+.Sp
+But to avoid portability warnings (see "use" in perlfunc), you may prefer:
+.Sp
+.Vb 1
+\&    use 5.036;
+.Ve
+.Sp
+with the same effect.
+.Sp
+If the required version is older than Perl 5.10, the ":default" feature
+bundle is automatically loaded instead.
+.Sp
+Unlike \f(CW\*(C`use feature ":5.12"\*(C'\fR, saying \f(CW\*(C`use v5.12\*(C'\fR (or any higher version)
+also does the equivalent of \f(CW\*(C`use strict\*(C'\fR; see "use" in perlfunc for details.
+.SH "CHECKING FEATURES"
+.IX Header "CHECKING FEATURES"
+\&\f(CW\*(C`feature\*(C'\fR provides some simple APIs to check which features are enabled.
+.PP
+These functions cannot be imported and must be called by their fully
+qualified names.  If you don't otherwise need to set a feature you will
+need to ensure \f(CW\*(C`feature\*(C'\fR is loaded with:
+.PP
+.Vb 1
+\&  use feature ();
+.Ve
+.IP feature_enabled($feature) 4
+.IX Item "feature_enabled($feature)"
+.PD 0
+.ie n .IP "feature_enabled($feature, $depth)" 4
+.el .IP "feature_enabled($feature, \f(CW$depth\fR)" 4
+.IX Item "feature_enabled($feature, $depth)"
+.PD
+.Vb 6
+\&  package MyStandardEnforcer;
+\&  use feature ();
+\&  use Carp "croak";
+\&  sub import {
+\&    croak "disable indirect!" if feature::feature_enabled("indirect");
+\&  }
+.Ve
+.Sp
+Test whether a named feature is enabled at a given level in the call
+stack, returning a true value if it is.  \f(CW$depth\fR defaults to 1,
+which checks the scope that called the scope calling
+\&\fBfeature::feature_enabled()\fR.
+.Sp
+croaks for an unknown feature name.
+.IP \fBfeatures_enabled()\fR 4
+.IX Item "features_enabled()"
+.PD 0
+.IP features_enabled($depth) 4
+.IX Item "features_enabled($depth)"
+.PD
+.Vb 5
+\&  package ReportEnabledFeatures;
+\&  use feature "say";
+\&  sub import {
+\&    say STDERR join " ", feature::features_enabled();
+\&  }
+.Ve
+.Sp
+Returns a list of the features enabled at a given level in the call
+stack.  \f(CW$depth\fR defaults to 1, which checks the scope that called
+the scope calling \fBfeature::features_enabled()\fR.
+.IP \fBfeature_bundle()\fR 4
+.IX Item "feature_bundle()"
+.PD 0
+.IP feature_bundle($depth) 4
+.IX Item "feature_bundle($depth)"
+.PD
+Returns the feature bundle, if any, selected at a given level in the
+call stack.  \f(CW$depth\fR defaults to 1, which checks the scope that called
+the scope calling \fBfeature::feature_bundle()\fR.
+.Sp
+Returns an undefined value if no feature bundle is selected in the
+scope.
+.Sp
+The bundle name returned will be for the earliest bundle matching the
+selected bundle, so:
+.Sp
+.Vb 3
+\&  use feature ();
+\&  use v5.12;
+\&  BEGIN { print feature::feature_bundle(0); }
+.Ve
+.Sp
+will print \f(CW5.11\fR.
+.Sp
+This returns internal state, at this point \f(CW\*(C`use v5.12;\*(C'\fR sets the
+feature bundle, but \f(CW\*(C` use feature ":5.12"; \*(C'\fR does not set the feature
+bundle.  This may change in a future release of perl.