use utf8;
+use strict;
+{
v5.004 => {
v5.005 => {
new => [
- ['threads' => '', {experimental => 0, stable => 0}],
+ ['<code>lock</code>', 'obsolete <code>Thread</code> implementation, including a keyword to place advisory locks on shared variables', {experimental => 0, stable => 0, dropped => v5.10}],
['<code>B::…</code>', 'backend hooks'],
['<code>qr//</code>' => 'overhauled regular expression engine: precompile operator, lookahead/behind, code, conditions, localised flags'],
['<code>… foreach</code>' => '<code>for(each)</code> as statement modifier, with large ranges optimised as counting loops'],
['<code>splice …,…,-$length</code>', 'negative length indicates elements to keep at the end of an array'],
['<code>$/</code>', 'integer or scalar separator makes <code><></code> read records instead of lines'],
],
+ modules => [
+ ['Data::Dumper' => 'stringify data structures'],
+ ['Errno' => 'system <code>errno.h</code> constants'],
+ ['File::Spec'],
+ ['Fatal'],
+ ['Test'],
+ ],
release => '1998-07-22',
unstable => 0,
},
v5.6 => {
new => [
- ['<code>use warnings</code>', 'pragma to enable warnings in lexical scope'],
- ['<code>use utf8</code>', 'experimental unicode semantics <small>(completed in v5.8)</small>', {experimental => 0, stable => v5.8}],
+ ['<code>use warnings</code>', 'pragma to enable warnings in lexical scope', {name => 'warnings'}],
+ ['<code>use utf8</code>', 'experimental unicode semantics <small>(completed in <a href="#utf8_data">v5.8</a>)</small>', {name => 'utf8', experimental => 0, stable => 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>sub :lvalue</code>', 'subroutine attribute to return a modifiable value', {experimental => 0, stable => v5.20}],
+ ['<code>sub :lvalue</code>', 'subroutine attribute to return a modifiable value', {name => 'sub_lvalue', experimental => 0, stable => 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)', {experimental => 0, stable => v5.8.1}],
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>no utf8</code>", 'full unicode support, <code>utf8</code> pragma only for script encoding', {name => 'utf8_data'}],
+ [q"<code>use open</code>", 'file handle behaviour altered by PerlIO layers', {name => 'perlio', eg => 'binmode $fh, ":bytes"'}],
[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
+ ],
+ modules => [
+ [bignum => 'transparent big number support', 'length 1e100 == 101'],
+ [if => 'conditional module inclusion', 'no if $] >= 5.022, "warnings", "redundant"'],
+ [sort => 'override sort() algorithm', {dropped => v5.28, eg => 'sort::current eq "stable"'}],
+ [Digest => 'calculate various message digests (data hashes)', '$hash = sha256_hex($data)'],
+ [Encode => 'character set conversion', 'encode("utf8", decode("iso-8859-1", $octets))'],
+ ['File::Temp' => 'create a temporary file or directory safely', '$fh = tempfile();'],
+ ['List::Util' => 'general-utility list subroutines', '@cards = shuffle 0..51'],
+ ['Locale::Maketext' => 'various localization and internationalization in <code>Locale::*</code> and <code>L18N::*</code>'],
+ ['Memoize' => 'remember function results, trading space for time', 'memoize "stat"'],
+ ['MIME::Base64' => 'base64 encoded strings as in email attachments'],
+ ['Test::More' => 'modern framework for unit testing', 'is $got, $expected'],
+ ['Time::HiRes' => 'high resolution timers', '$μs = [gettimeofday]; sleep .1; $elapsed = tv_interval $μs'],
],
release => '2002-07-18',
distro => {
['<code>//</code>', 'defined-or operator'],
['<code>~~</code>', 'smart-match operator to compare different data types <small>(updated in v5.10.1)</small>', {experimental => 'smartmatch'}],
['<code>say</code>', 'print with newline, equivalent to <code>print @_, "\n"</code>', {feature => 'say'}],
- ['<code>given</code>', 'switch statement to smart-match with <code>when</code>/<code>default</code>', {feature => 'switch', experimental => 'smartmatch'}],
+ ['<code>given</code>', 'switch statement to smart-match with <code>when</code>/<code>default</code>', {name => 'switch', feature => 'switch', experimental => 'smartmatch'}],
['<code>/(?<name>)/</code>', 'named capture buffers into <code>%+</code>'],
['<code>/(?1)/</code>', 'recursive regular expression patterns'],
['<code>/(?|)/</code>', 'resets capture numbering for each contained branch'],
['<code>/p</code>', 'optionally preserve <code>${^MATCH}</code> variables (avoiding <code>$&</code> penalty until COW in v5.20)'],
['<code>/\v/, /\h/</code>', 'vertical and horizontal whitespace escapes (<code>\V</code> <code>\H</code> to invert); also <code>/\R/</code> for newlines'],
['<code>my $_</code>', 'lexically scoped version of the default variable', {experimental => 'lexical_topic', dropped => v5.23.4}],
- ['<code>state</code>', 'persistent <code>my</code> variables', {feature => 'state'}],
+ ['<code>state</code>', 'persistent <code>my</code> variables (scalars only until <a href="#state_ext">5.28</a>)', {feature => 'state'}],
+ ],
+ modules => [
+ [autodie => 'replace builtin functions to throw exceptions instead of returning failure', 'eval {open ...} or $@->matches("open") || die'],
+ # overloading
+ ['IO::Compress::Zip' => 'various file compression standards', 'zip IO::Uncompress::Gunzip->new("test.gz") => "recompressed.zip"'],
+ ['Time::Piece' => 'timestamps as objects', 'localtime->year > 1900'],
+ ['File::Fetch' => 'generic data retrieval/download', 'File::Fetch->new(uri => "http://localhost/")->fetch(to => \$slurp)'],
],
release => '2007-12-18',
distro => {
['<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'],
['<code>/\N/</code>', 'inverse \n to match any character except newline regardless of <code>/s</code>', {experimental => 0, stable => v5.18}],
+ ['<code>each $ref</code> e.a.', 'array and hash container functions accept references', {experimental => 'autoderef', dropped => v5.23.1}],
],
release => '2010-04-12',
unicode => '5.2',
['<code>/dalu</code>', 'regexp modifiers to restrict character classes: either <strong>d</strong>efault, <strong>a</strong>scii, <strong>l</strong>ocale, or <strong>u</strong>nicode semantics.'],
[q"<code>use re '/flags'</code>", 'customise default modifiers'],
['<code>/(?^)/</code>', 'construct to reset to default modifiers'],
- ['<code>each $ref</code> e.a.', 'array and hash container functions accept references', {experimental => 'postderef', dropped => v5.23.1}],
['<code>FH->method</code>', 'filehandle method calls load IO::File on demand (eg. <code>STDOUT->flush</code>)'],
['<code>\o{}</code>', 'escape sequence for octal values beyond \777'],
],
+ modules => [
+ [JSON => 'interface with data in JavaScript Object Notation', 'decode_json <>'],
+ ['HTTP::Tiny' => 'minimal HTTP/1.1 client without <code>LWP::UserAgent</code> overhead', {dropped => 0}],
+ # Unicode::Collate::Locale
+ ],
release => '2011-05-14',
distro => {
debian => '7', # wheezy 2013-05 eol 2018-05 elts 2020-06
['<code>@{^CAPTURE}</code>', q"array of last match's captures, so <code>${^CAPTURE}[0]</code> is <code>$1</code>"],
['<code>//xx</code>', 'extended modifier to also ignore whitespace in bracketed character classes'],
],
+ modules => [
+ ['Test2::V0' => 'generic testing framework to replace <code>Test::*</code> and <code>TAP::*</code>'],
+ ],
unicode => '9.0', # also Script_Extensions/scx in "\p{script}"
release => '2017-05-30',
distro => {
['<code>delete %hash{…}</code>', 'hash slices can be deleted with key+value pairs'],
['<code>/(*…)/</code>', 'alphabetic synonyms for assertions, e.g. <code>(*atomic:…)</code> for <code>(?>…)</code> and <code>(*nlb:…)</code> for <code>(?<!…)</code>', {experimental => 'alpha_assertions', stable => v5.31.6}],
['<code>/(*script_run:)/</code>', 'enforces all characters to be from the same script', {experimental => 'script_run', stable => v5.31.6}],
- ['<code>state @a</code>', 'persistent lexical array or hash variables'],
+ ['<code>state @a</code>', 'persistent lexical array or hash variables (in addition to <a href="#state">scalars</a>)', {name => 'state_ext'}],
['perl<code> -i -pe die</code>', 'safe in-place editing: files are replaced only after successful completion'],
['<code>${^SAFE_LOCALES}</code>', 'locales are thread-safe on supported systems, indicated by this variable'],
],
new => [
['<code>/(?<=var+)</code>', 'variable length lookbehind assertions', {experimental => 'vlb', stable => v5.36}],
['<code>m(\p{nv=/.*/})</code>', 'match unicode properties by regular expressions', {experimental => 'uniprop_wildcards'}],
- ['<code><s>my $state if 0</s></code>', 'workaround for <code>state</code> (deprecated since v5.10!) is now prohibited'],
- [q"<code>qr'\N'</code>", 'Delimiters must be graphemes; unescaped { illegal; \N in single quotes'],
+ ['<code><s>my $state if 0</s></code>', 'workaround for <code><a href="#state">state</a></code> (deprecated since v5.10!) is now prohibited'],
+ [q"<code>qr'\N'</code>", 'Delimiters must be graphemes; unescaped <code>{</code> illegal; <code>\N</code> in single quotes'],
],
unicode => '12.1',
release => '2019-05-22',
new => [
['<code>isa</code>', 'infix operator to check class instance', {feature => 'isa', experimental => 'isa', stable => v5.36}],
['<code>$min < $_ <= $max</code>', 'chained comparison repeats inner part as <code>$min < $_ and $_ <= $max</code>'],
- ['<code>/\p{Name=$var}/</code>', 'match Unicode Name property like \N{} but with interpolation and subpatterns'],
+ ['<code>/\p{Name=$var}/</code>', 'match Unicode Name property like <code>\N{}</code> but with interpolation and subpatterns'],
[q"<code>open F, '+>>', undef</code>", 'respect append mode on temporary files with mixed access'],
["<code>no feature 'indirect'</code>", 'disable indirect object notation such as <code>new Class</code> instead of <code>Class->new</code>'],
['streamzip', 'program distributed with core IO::Compress::Base to compress stdin into a zip container'],
new => [
['<code>use v5.36</code>', "use <code>warnings</code>; use feature qw'<code>signatures isa</code>'; no feature qw'<code>indirect multidimensional switch</code>'"],
['<code>use builtin</code>', 'namespace for interpreter functions, such as <code>weaken</code> and <code>blessed</code> from <code>Scalar::Util</code>, <code>ceil</code>/<code>floor</code> from <code>POSIX</code>, and <code>trim</code> like <code>String::Util</code>', {experimental => 'builtin'}],
- ['<code>is_bool(!0)</code>', 'distinguish scalar variable types (by <code>builtin</code> functions) for data interoperability'],
+ ['<code>is_bool(!0)</code>', 'distinguish scalar variable types (by <code>builtin</code> functions) for data interoperability', {name => 'is_bool'}],
['<code>for my ($k, $v) (%hash)</code>', 'iterate over multiple values at a time (including <code>builtin::indexed</code> for arrays)', {experimental => 'for_list', feature => 'for_list'}],
['<code>defer {}</code>', 'queue code to be executed when going out of scope', {feature => 'defer', experimental => 'defer'}],
- ['<code>try {} finally {}</code>', 'run code at the end of a <code>try</code> construct regardless of failure', {feature => 'try', experimental => 'try'}],
+ ['<code>try {} finally {}</code>', 'run code at the end of a <code><a href="#try">try</a></code> construct regardless of failure', {name => 'finally', feature => 'try', experimental => 'try'}],
['<code>q«…»</code>', 'unicode delimiters for quoting operators', {experimental => 'extra_paired_delimiters'}],
- ['<code>sub ($var) {!<s>pop</s>}</code>', 'signatured subs are stable, but mixing with the arguments array <code>@_</code> remains experimental', {feature => 'signatures', experimental => 'args_array_with_signatures'}],
- ['<code>$SIG{FPE}</code>', 'floating-point exceptions no longer deferred but delivered immediately like other signals'],
+ ['<code>sub ($var) {!<s>pop</s>}</code>', '<a href="#signatures">signature</a>d subs are stable, but mixing with the arguments array <code>@_</code> remains experimental', {feature => 'signatures', experimental => 'args_array_with_signatures'}],
+ ['<code>$SIG{FPE}</code>', 'floating-point exceptions no longer deferred but delivered immediately like other signals', {name => 'sig_fpe'}],
['perl<code> -g</code>', 'disable input record separator (slurp mode), alias for <code>-0777</code>'],
],
unicode => '14.0',
git.shiar.nl / sheet.git / blobdiff