['<code>use utf8</code>', 'experimental unicode semantics <small>(completed in v5.8)</small>', v5.8],
['<code>use charnames</code>', 'string escape <code>\N{}</code> to insert named character'],
['<code>our</code>', 'declare global variables'],
- ['<code>v1.2.3</code>', q`represent strings as vector of ordinals, useful in version numbers (<code>printf '%vd'</code> to display)`],
- ['<code>0b0</code>', q`binary numbers in literals, <code>printf '%b'</code>, and <code>oct</code>`],
+ ['<code>v1.2.3</code>', q"represent strings as vector of ordinals, useful in version numbers (<code>printf '%vd'</code> to display)"],
+ ['<code>0b0</code>', q"binary numbers in literals, <code>printf '%b'</code>, and <code>oct</code>"],
['<code>sub :lvalue</code>', 'subroutine attribute to return a modifiable value', v5.20],
# ['<code>sub :locked :method</code>', 'syntax to declare subroutine attributes'], # can be inferred from :lvalue support
['<code>open my $fh, $mode, $expr</code>', 'file handles in scoped scalars, third argument for unambiguous file name'],
- [q`<code>pack 'q'</code>`, '64-bit integer support (also large files >2GiB)', v5.8.1],
+ [q"<code>pack 'q'</code>", '64-bit integer support (also large files >2GiB)', v5.8.1],
['<code>sort $coderef ()</code>', 'comparison function can be a subroutine reference; prototype <code>($$)</code> to pass elements as normal <code>@_</code>'],
['<code>CHECK {}</code>', 'special block called at end of compilation'],
['<code>/[[:…:]]/</code>', 'POSIX character class syntax such as <code>/[[:alpha:]]/</code>'],
debian => 'woody',
rhel => '2', # v5.6.0; also in red hat 7.0
solaris => '9', # v5.6.1; 2002-05 eol 2014-10
+ aix => '5.1', # 2001-05 eol 2006-04
},
unicode => '3.0.1',
},
v5.8 => {
new => [
- [q`<code>no utf8</code>`, 'full unicode support, <code>utf8</code> pragma only for script encoding'],
- [q`<code>binmode $fh, ':perlio'</code>`, 'file handle behaviour altered by PerlIO layers'],
- [q`<code>open $fh, '-|', @cmd</code>`, 'open list to fork a command without spawning a shell'],
- [q`<code>open $fh, '>', \$var</code>`, 'perl scalars as virtual files'],
- [q`<code>printf '%1$s', @args</code>`, 'syntax to use parameters out of order'],
- [q`<code>1_2_3 == 123</code>`, 'underscores between digits allowed in numeric constants'],
-# [q`<code>use if</code>`, 'conditional module inclusion'], # also installable in earlier versions
+ [q"<code>no utf8</code>", 'full unicode support, <code>utf8</code> pragma only for script encoding'],
+ [q"<code>binmode $fh, ':perlio'</code>", 'file handle behaviour altered by PerlIO layers'],
+ [q"<code>open $fh, '-|', @cmd</code>", 'open list to fork a command without spawning a shell'],
+ [q"<code>open $fh, '>', \$var</code>", 'perl scalars as virtual files'],
+ [q"<code>printf '%1$s', @args</code>", 'syntax to use parameters out of order'],
+ [q"<code>1_2_3 == 123</code>", 'underscores between digits allowed in numeric constants'],
+# [q"<code>use if</code>", 'conditional module inclusion'], # also installable in earlier versions
],
release => '2002-07-18',
distro => {
rhel => '3', # v5.8.0; v5.8.8 in RHEL6 (2007-2014)
solaris => '10', # v5.8.4; 2005-01 eol 2021-01
centos => '3-5', # v5.8.0 in v3 (2004-03); v5.8.8 in v5 (eol 2017-03)
+ ubuntu => '4.10',
+ aix => '5.2', # v5.8.0; v5.8.2 in 5.3 and 6.1 (eol 2017-04-30)
},
unicode => '3.2.0',
},
['<code>/(?<name>)/</code>', 'named capture buffers into <code>%+</code>'],
['<code>s/keep\K//</code>', 'floating positive lookbehind, efficient alternative for <code>s/(keep)/$1/</code>'],
['<code>/\v/, /\h/</code>', 'vertical and horizontal whitespace escapes'],
- ['<code>my $_</code>', 'lexically scoped version of the default variable', 'experimental::lexical_topic'],
+ ['<code>my $_</code>', 'lexically scoped version of the default variable', v0.5.23.4, 'experimental::lexical_topic'],
],
release => '2007-12-18',
distro => {
debian => 'lenny',
rhel => '6', # v5.10.1
centos => '6', # v5.10.1 (2011-07 eol 2020-11)
+ ubuntu => '8.10', # v5.10.1 in 10.04 LTS
+ aix => '7.1', # v5.10.1 (2010-09 eol 2020?)
},
unicode => '5.0.0',
},
v5.12 => {
new => [
- ['<code>package version</code>', '<code>package</code> NAME VERSION shorthand for <code>our $VERSION</code>'],
+ ['<code>package</code> version', '<code>package</code> NAME VERSION shorthand for <code>our $VERSION</code>'],
['<code>...</code>', 'yada-yada operator: code placeholder'],
- ['<code>use 5.012</code>', 'Implicit <code>strict</code> if use VERSION >= v5.12'],
+ ['<code>use 5.012</code>', 'implicit <code>strict</code> if use VERSION >= v5.12'],
['<code>… when</code>', '<code>when</code> is now allowed to be used as a statement modifier'],
- [q(<code>use overload 'qr'</code>), 'customisable conversion to regular expressions'],
+ [q"<code>use overload 'qr'</code>", 'customisable conversion to regular expressions'],
['<code>/\N/</code>', 'inverse \n to match any character except newline regardless of <code>/s</code>', v5.18],
],
release => '2010-04-12',
unicode => '5.2',
distro => {
solaris => '11', # also v5.8.4; 2010-11 eol 2024-11
+ ubuntu => '11.10',
},
},
['<code>s///r</code>', 'non-destructive substitution'],
['<code>/(?^)/</code>', 'construct to reset to default modifiers'],
['<code>/(?{ m() })/</code>', 'regular expressions can be nested in <code>/(?{})/</code> and <code>/(??{})/</code>', v5.20],
- ["<code>use re '/flags'</code>", 'customise default modifiers'],
- ['<code>each $ref</code> e.a.', 'array and hash container functions accept references', ''],
+ [q"<code>use re '/flags'</code>", 'customise default modifiers'],
+ ['<code>each $ref</code> e.a.', 'array and hash container functions accept references', v0.5.23.1],
['<code>FH->method</code>', 'filehandle method calls load IO::File on demand (eg. <code>STDOUT->flush</code>)'],
],
release => '2011-05-14',
distro => {
debian => 'wheezy',
+ ubuntu => '12.04',
},
unicode => '6.0+#8',
},
new => [
['<code>${^LAST_FH}</code>', 'last read filehandle (used by <code>$.</code>)'],
['<code>/(?[ a + b ])/</code>', 'regex set operations (character substraction <code>-</code>, unions <code>&</code>)', 'experimental::regex_sets'],
- ['<code>my sub</code>', 'lexical subroutines (also <code>state</code>, <code>our</code>)', 'experimental::lexical_subs'],
+ ['<code>my sub</code>', 'lexical subroutines (also <code>state</code>, <code>our</code>); buggy before v5.22', 'experimental::lexical_subs'],
['<code>next $expression</code>', 'loop controls allow runtime expressions'],
- [q(<code>no warnings 'experimental::…'</code>), 'mechanism for experimental features, as of now required for smartmatch'],
+ [q"<code>no warnings 'experimental::…'</code>", 'mechanism for experimental features, as of now required for smartmatch'],
],
release => '2013-05-18',
+ distro => {
+ ubuntu => '14.04',
+ },
unicode => '6.2',
},
new => [
['<code>sub ($var)</code>', 'subroutine signatures', 'experimental::signatures'],
['<code>%hash{…}</code>', 'hash slices return key+value pairs'],
- ['<code>[]->@*</code>', 'postfix dereferencing (also e.g. <code>$scalar->$*</code> for <code>$$scalar</code>)', 'experimental::postderef'],
- [q(<code>use warnings 'once'; $a</code>), 'variables $a and $b are exempt from <em>used once</em> warnings'],
+ ['<code>[]->@*</code>', 'postfix dereferencing (also e.g. <code>$scalar->$*</code> for <code>$$scalar</code>)', v5.23.1, 'experimental::postderef'],
+ [q"<code>use warnings 'once'; $a</code>", 'variables $a and $b are exempt from <em>used once</em> warnings'],
],
unicode => '6.3',
release => '2014-05-27',
distro => {
debian => 'jessie',
+ ubuntu => '14.10',
+ aix => '7.2',
},
},
],
unicode => '7.0',
release => '2015-06-01',
+ distro => {
+ ubuntu => '16.04',
+ },
+ },
+
+ v5.24 => {
+ new => [
+ [q"<code>printf '%.*2$x'</code>", 'reordered precision arguments'],
+ ['<code>/\b{lb}/</code>', 'line break boundary type (position suitable for hyphenation)'],
+ ['<code>/faster/</code>', 'various significant speedups, notably matching fixed substrings, <code>/i</code> on caseless languages, 64-bit arithmetic, scope overhead'],
+ ],
+ unicode => '8.0',
+ release => '2016-05-09',
},
}
git.shiar.nl / sheet.git / blobdiff