X-Git-Url: http://git.shiar.net/sheet.git/blobdiff_plain/4542eccbacf469cae51d52e422c6eb65b081bb9c..079d4af84d3b9f49cd072b3e53e3bdfef3887173:/perl.inc.pl
diff --git a/perl.inc.pl b/perl.inc.pl
index 632fc12..9d416eb 100644
--- a/perl.inc.pl
+++ b/perl.inc.pl
@@ -1,61 +1,289 @@
use utf8;
+{
+ v5.005 => {
+ new => [
+ ['threads' => '', {experimental => 0, stable => 0}],
+ ['B::â¦
', 'backend hooks'],
+ ['qr//
' => 'overhauled regular expression engine: precompile operator, lookahead/behind, code, conditions, localised flags'],
+ ['⦠foreach
' => 'for(each)
as statement modifier, with large ranges optimised as counting loops'],
+ ['â¦::
' => 'implicitly quoted package name'],
+ ['ref $@
' => 'die
passes reference values to exception handlers'],
+ ['INIT {}
', 'subs run just before the perl runtime begins execution'],
+ ['tie @â¦
' => 'base class for TIEARRAY
implementations, and generally improved supported of tied handlers'],
+ ['substr â¦,â¦,â¦,$replace
', 'replacement string in 4th argument'],
+ ['splice â¦,â¦,-$length
', 'negative length indicates elements to keep at the end of an array'],
+ ['$/
', 'integer or scalar separator makes <>
read records instead of lines'],
+ ],
+ release => '1998-07-22',
+ unstable => 0,
+ },
+
v5.6 => {
new => [
- ['use utf8'],
- ['\N{named character}'],
- ['our'],
- ['v1.2.3'],
- ['sub :locked :method'],
- ['open $fh, $mode, $expr'],
+ ['use warnings
', 'pragma to enable warnings in lexical scope'],
+ ['use utf8
', 'experimental unicode semantics (completed in v5.8)', {experimental => 0, stable => v5.8}],
+ ['use charnames
', 'string escape \N{}
to insert named character'],
+ ['our
', 'declare global variables'],
+ ['v1.2.3
', q"represent strings as vector of ordinals, useful in version numbers (printf '%vd'
to display)"],
+ ['0b0
', q"binary numbers in literals, printf '%b'
, and oct
"],
+ ['sub :lvalue
', 'subroutine attribute to return a modifiable value', {experimental => 0, stable => v5.20}],
+# ['sub :locked :method
', 'syntax to declare subroutine attributes'], # can be inferred from :lvalue support
+ ['open my $fh, $mode, $expr
', 'file handles in scoped scalars, third argument for unambiguous file name'],
+ [q"pack 'q'
", '64-bit integer support (also large files >2GiB)', {experimental => 0, stable => v5.8.1}],
+ ['sort $coderef ()
', 'comparison function can be a subroutine reference; prototype ($$)
to pass elements as normal @_
'],
+ ['CHECK {}
', 'special block called at end of compilation'],
+ ['/[[:â¦:]]/
', 'POSIX character class syntax such as /[[:alpha:]]/
'],
+ # quite a lot more, but leave it at this
],
release => '2000-03-23',
+ distro => {
+ 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
+ opensuse => '7.1',
+ },
+ unicode => '3.0.1',
},
+
v5.8 => {
new => [
- ['unicode overhaul'],
- ['PerlIO'],
+ [q"no utf8
", 'full unicode support, utf8
pragma only for script encoding'],
+ [q"binmode $fh, ':perlio'
", 'file handle behaviour altered by PerlIO layers'],
+ [q"open $fh, '-|', @cmd
", 'open list to fork a command without spawning a shell'],
+ [q"open $fh, '>', \$var
", 'perl scalars as virtual files'],
+ [q"printf '%1$s', @args
", 'syntax to use parameters out of order'],
+ [q"1_2_3 == 123
", 'underscores between digits allowed in numeric constants'],
+# [q"use if
", 'conditional module inclusion'], # also installable in earlier versions
],
release => '2002-07-18',
+ distro => {
+ debian => 'sarge',
+ 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)
+ freebsd => '4-6',
+ opensuse => '8.1',
+ },
+ distrosum => "dinosaur platforms such as Solaris 10, AIX 5.2, RHEL 3, SLES 8",
+ unicode => '3.2.0',
},
+
v5.10 => {
new => [
- ['//', 'defined-or operator'],
- ['~~', 'smart-match operator to compare different data types'],
- ['given', 'switch statement to smart-match with when/default'],
- ['/(?)/ and $+{name}', 'named caputer buffers'],
- ['s/keep\K//', 'floating positive lookbehind, efficient alternative for s/(keep)/$1/'],
- ['/\v/, /\h/', 'vertical and horizontal whitespace escapes'],
- ['my $_', 'lexically scoped version of the default variable'],
+ ['//
', 'defined-or operator'],
+ ['~~
', 'smart-match operator to compare different data types (updated in v5.10.1)', {experimental => 'smartmatch'}],
+ ['say
', 'print with newline, equivalent to print @_, "\n"
', {feature => 'say'}],
+ ['given
', 'switch statement to smart-match with when
/default
', {feature => 'switch', experimental => 'smartmatch'}],
+ ['/(?<name>)/
', 'named capture buffers into %+
'],
+ ['/(?1)/
', 'recursive regular expression patterns'],
+ ['/(?|)/
', 'resets capture numbering for each contained branch'],
+ ['/.++/
', 'possessive quantifiers ?+
, *+
, ++
to match greedily'],
+ ['s/keep\K//
', 'floating positive lookbehind, efficient alternative for s/(keep)/$1/
'],
+ ['/p
', 'optionally preserve ${^MATCH}
variables (avoiding $&
penalty until COW in v5.20)'],
+ ['/\v/, /\h/
', 'vertical and horizontal whitespace escapes (\V
\H
to invert); also /\R/
for newlines'],
+ ['my $_
', 'lexically scoped version of the default variable', {experimental => 'lexical_topic', dropped => v5.23.4}],
+ ['state
', 'persistent my
variables', {feature => 'state'}],
],
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?)
+ opensuse => '11.0',
+ },
+ unicode => '5.0.0',
},
+
v5.12 => {
new => [
- ['package version', 'package NAME VERSION shorthand for our $VERSION"'],
- ['...', 'yada-yada operator: code placeholder'],
- ['use strict', 'Implicit strictures if use VERSION >= 5.12'],
- ['... when', '"when" is now allowed to be used as a statement modifier'],
+ ['package
version', 'package
NAME VERSION shorthand for our $VERSION
'],
+ ['...
', 'yada-yada operator: code placeholder'],
+ ['use 5.012
', 'implicit strict
if use VERSION >= v5.12'],
+ ['⦠when
', 'when
is now allowed to be used as a statement modifier'],
+ [q"use overload 'qr'
", 'customisable conversion to regular expressions'],
+ ['/\N/
', 'inverse \n to match any character except newline regardless of /s
', {experimental => 0, stable => v5.18}],
],
release => '2010-04-12',
+ unicode => '5.2',
+ distro => {
+ solaris => '11', # also v5.8.4; 2010-11 eol 2024-11
+ ubuntu => '11.10',
+ freebsd => '7',
+ opensuse => '11.3',
+ },
},
+
v5.14 => {
new => [
- ['s///r', 'non-destructive substitution'],
- ['/(?^)/', 'construct to reset to default modifiers'],
- ['/(?{ m// })/', 'regular expressions can be nested in /(?{})/ and /(??{})/'],
- ["use re '/flags'", 'customize default modifiers'],
- ['each $ref e.a.', 'array and hash container functions accept references'],
+ ['s///r
', 'non-destructive substitution'],
+ ['/(?{ m() })/
', 'regular expressions can be nested in /(?{})/
and /(??{})/
', {experimental => 0, stable => v5.20}],
+ ['/dalu
', 'regexp modifiers to restrict character classes: either default, ascii, locale, or unicode semantics.'],
+ [q"use re '/flags'
", 'customise default modifiers'],
+ ['/(?^)/
', 'construct to reset to default modifiers'],
+ ['each $ref
e.a.', 'array and hash container functions accept references', {experimental => 'postderef', dropped => v5.23.1}],
+ ['FH->method
', 'filehandle method calls load IO::File on demand (eg. STDOUT->flush
)'],
+ ['\o{}
', 'escape sequence for octal values beyond \777'],
],
release => '2011-05-14',
+ distro => {
+ debian => '7', # wheezy 2013-05 eol 2018-05
+ ubuntu => '12.04',
+ opensuse => '12.1',
+ },
+ distrosum => "stable servers such as Debian 7, Ubuntu 12.04, CentOS 7",
+ unicode => '6.0+#8',
},
+
v5.16 => {
new => [
- ['__SUB__', 'current subroutine reference'],
- ['fc, "\F"', 'unicode foldcase to compare case-insensitively'],
- ['"\N{}"', 'automatic use charnames qw( :full :short )'],
+ ['__SUB__
', 'current subroutine reference', {feature => 'current_sub'}],
+ ['fc, "\F"
', 'unicode foldcase to compare case-insensitively', {feature => 'fc'}],
+ ['"\N{}"
', 'automatic use charnames qw( :full :short )
'],
],
release => '2012-05-20',
+ distro => {
+ rhel => '7', # v5.16.3
+ centos => '7', # v5.16.3 (2014-07 eol 2024-06)
+ freebsd => '9',
+ opensuse => '12.2',
+ },
+ unicode => '6.1',
+ },
+
+ v5.18 => {
+ new => [
+ ['${^LAST_FH}
', 'last read filehandle (used by $.
)'],
+ ['/(?[ a + b ])/
', 'regex set operations (character substraction -
, unions &
)', {experimental => 'regex_sets'}],
+ ['my sub
', 'lexical subroutines (also state
, our
); buggy before v5.22', {experimental => 'lexical_subs', stable => v5.26}],
+ ['next $expression
', 'loop controls allow runtime expressions'],
+ [q"no warnings 'experimental::â¦'
", 'mechanism for experimental features, as of now required for smartmatch'],
+ ],
+ release => '2013-05-18',
+ distro => {
+ ubuntu => '14.04 LTS', # trusty
+ opensuse => '13.1',
+ },
+ unicode => '6.2',
+ },
+
+ v5.20 => {
+ new => [
+ ['sub ($var)
', 'subroutine signatures', {feature => 'signatures', experimental => 'signatures'}],
+ ['%hash{â¦}
', 'hash slices return key+value pairs'],
+ ['[]->@*
', 'postfix dereferencing (also e.g. $scalar->$*
for $$scalar
)', {feature => 'postderef, postderef_qq', experimental => 'postderef', stable => v5.23.1}],
+ [q"use warnings 'once'; $a
", 'variables $a and $b are exempt from used once warnings'],
+ ],
+ unicode => '6.3',
+ release => '2014-05-27',
+ distro => {
+ debian => '8', # jessie 2015-04 eol 2020-05
+ ubuntu => '14.10', # utopic
+ aix => '7.2',
+ opensuse => '13.2', # 2014-11 eol 2017-01
+ },
+ distrosum => "stable servers such as Debian 8 (oldstable), Ubuntu 14.10, FreeBSD 10, openSUSE 13.2",
+ },
+
+ v5.22 => {
+ new => [
+ ['\$alias =
', 'aliasing via reference (scoped as of v5.25.3)', {experimental => 'refaliasing'}],
+ ['<<>>
', 'safe readline
ignoring open flags in arguments'],
+ ['/()/n
', 'flag to disable numbered capturing, turning ()
into (?:)
'],
+ ['/\b{}/
', 'boundary types: gcb (grapheme cluster), sb (sentence), wb (word)'],
+ ['&.
', '& | ^ ~
consistently numeric, dotted operators for strings', {feature => 'bitwise', experimental => 'bitwise', stable => v5.28}],
+ [q"use re 'strict'
", 'apply stricter syntax rules to regular expression patterns', {experimental => 're_strict'}],
+ ['0x.beep+0
', q"hexadecimal floating point notation with binary power; printf '%a'
to display"],
+ ['??
', 'single match shorthand (deprecated since v5.14) requires the operator m?PATTERN?
'],
+ ],
+ unicode => '7.0',
+ release => '2015-06-01',
+ distro => {
+ ubuntu => '16.04 LTS', # xenial
+ },
+ },
+
+ v5.24 => {
+ new => [
+ [q"printf '%.*2$x'
", 'reordered precision arguments'],
+ ['/\b{lb}/
', 'line break boundary type (position suitable for hyphenation)'],
+ ['/faster/
', 'various significant speedups, notably matching fixed substrings, /i
on caseless languages, 64-bit arithmetic, scope overhead'],
+ ],
+ unicode => '8.0',
+ release => '2016-05-09',
+ distro => {
+ debian => '9', # stretch 2017-06
+ ubuntu => '17.04', # zesty
+ freebsd => '10',
+ },
+ },
+
+ v5.26 => {
+ new => [
+ ['<<~EOT
', 'indented here-docs, strips same whitespace before delimiter in each line'],
+ ['@{^CAPTURE}
', q"array of last match's captures, so ${^CAPTURE}[0]
is $1
"],
+ ['//xx
', 'extended modifier to also ignore whitespace in bracketed character classes'],
+ ],
+ unicode => '9.0', # also Script_Extensions/scx in "\p{script}"
+ release => '2017-05-30',
+ distro => {
+ ubuntu => '17.10', # artful
+ },
+ },
+
+ v5.28 => {
+ new => [
+ ['delete %hash{â¦}
', 'hash slices can be deleted with key+value pairs'],
+ ['/(*â¦)/
', 'alphabetic synonyms for assertions, e.g. (*atomic:â¦)
for (?>â¦)
and (*nlb:â¦)
for (?<!â¦)
', {experimental => 'alpha_assertions', stable => v5.31.6}],
+ ['/(*script_run:)/
', 'enforces all characters to be from the same script', {experimental => 'script_run', stable => v5.31.6}],
+ ['state @a
', 'persistent lexical array or hash variables'],
+ ['perl -i -pe die
', 'safe in-place editing: files are replaced only after successful completion'],
+ ['${^SAFE_LOCALES}
', 'locales are thread-safe on supported systems, indicated by this variable'],
+ ],
+ unicode => '10.0',
+ release => '2018-06-22',
+ distro => {
+ },
+ },
+
+ v5.30 => {
+ new => [
+ ['/(?<=var+)
', 'variable length lookbehind assertions', {experimental => 'vlb'}],
+ ['m(\p{nv=/.*/})
', 'match unicode properties by regular expressions', {experimental => 'uniprop_wildcards'}],
+ ['my $state if 0
', 'workaround for state
(deprecated since v5.10!) is now prohibited'],
+ [q"qr'\N'
", 'Delimiters must be graphemes; unescaped { illegal; \N in single quotes'],
+ ],
+ unicode => '12.1',
+ release => '2019-05-22',
+ },
+
+ v5.32 => {
+ new => [
+ ['isa
', 'infix operator to check class instance'],
+ ['$min < $_ <= $max
', 'chained comparison repeats inner part as $min < $_ and $_ <= $max
'],
+ ['/\p{Name=$var}/
', 'match Unicode Name property like \N{} but with interpolation and subpatterns'],
+ [q"open F, '+>>', undef
", 'respect append mode on temporary files with mixed access'],
+ ["no feature 'indirect'
", 'disable indirect object notation such as new Class
instead of Class->new
'],
+ ['streamzip', 'program distributed with core IO::Compress::Base to compress stdin into a zip container'],
+ ],
+ unicode => '13.0',
+ release => '2020-06-20',
+ details => 'https://www.effectiveperlprogramming.com/2020/01/perl-v5-32-new-features/',
+ },
+
+ v5.34 => {
+ new => [
+ ['try {} catch
', 'exception handling similar to eval blocks', {experimental => 'try'}],
+ ['/{,n}/
', 'empty lower bound quantifier is accepted as shorthand for 0'],
+ ['\x{ ⦠}
', 'insignificant space within curly braces, also for \b{}
, \g{}
, \k{}
, \N{}
, \o{}
as well as /{m,n}/
quantifiers'],
+ ['0o0
', 'octal prefix 0o
alternative to 0â¦
and oct
'],
+ ['re::optimization(qr//)
', 'debug regular expression optimization information discovered at compile time'],
+ ],
+ release => '2021-05-20',
},
}