{"id":86435,"date":"2020-06-25T01:42:12","date_gmt":"2020-06-24T23:42:12","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/anonsirovan-perl-7"},"modified":"2020-06-25T01:42:12","modified_gmt":"2020-06-24T23:42:12","slug":"anonsirovan-perl-7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/anonsirovan-perl-7","title":{"rendered":"Perl 7 on teatatud","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>T\u00e4nasel toimuval virtuaalsel Perl-i arendajate konverentsil <noindex><a rel=\"nofollow\" href=\"https:\/\/www.perl.com\/article\/announcing-perl-7\/\">teatatakse<\/a><\/noindex> projekti Perl 7, mis j\u00e4tkab sujuvalt Perl 5 arengut ilma radikaalsete muudatusteta. Perl 7 sarnaneb v\u00e4ljaandega <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53207\">Perl 5.32.0<\/a><\/noindex>, v\u00e4lja arvatud m\u00f5ned vaikeseaded, mis vastavad paremini t\u00e4nap\u00e4eva arendustavadele. Muus osas j\u00e4\u00e4b Perl 7 samaks Perl 5-ks ja s\u00e4ilitab \u00fchilduvuse varasemalt arendatud rakendustega.<\/p>\n<p>Signifikiivne versiooninumbri vahetus toimib omamoodi piiritajana \u00fcleminekuks uuele mudelile, et suurendada Perl-i funktsionaalsust ilma tagasisuunalise \u00fchilduvuse rikkumiseta.<br \/>\nOletatakse, et Perl 7 loomine aitab meelitada uusi arendajaid Perl-i kasutama ning sujuvalt lisada keelde olulisi uusi v\u00f5imalusi, s\u00e4ilitades samas olemasolevate projektide koodibaasi \u00fchilduvuse. Number 7 on valitud, kuna Perl 6-d on kasutatud keele arendamisel, mis n\u00fc\u00fcd <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51679\">areneb<\/a><\/noindex> on eraldi nime all Raku. Esimene Perl 7 versioon oodatakse j\u00e4rgmisel aastal. Perl 5.32 haru j\u00e4\u00e4b viimaseks Perl 5 seerias ja seda plaanitakse toetada 5 kuni 10 aastat.<\/p>\n<p>Perl 7 k\u00f5ige t\u00e4helepanuv\u00e4\u00e4rsem muudatus on vaikimisi 'mode' k\u00e4ivitamine,<noindex><a rel=\"nofollow\" href=\"https:\/\/perldoc.perl.org\/strict.html\">strict<\/a><\/noindex>'mode', mis eeldab ranget muutujate deklareerimise, t\u00e4histamisviidete ja allfunktsioonide m\u00e4\u00e4ramise kontrolli. 'use strict' kasutamine on hea toon ja seda rakendavad enamik arendajaid. Samuti plaanitakse vaikimisi aktiveerida hoiatused ('use feature 'signatures'),<noindex><a rel=\"nofollow\" href=\"https:\/\/perldoc.perl.org\/warnings.html\">use warnings<\/a><\/noindex>&#171;).<\/p>\n<p> Perl 7-s loodetakse stabiliseerida ja vaikimisi lisada juba olemasolevaid katsev\u00f5imalusi, nagu  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=39865\">funktsioonide allkirjad<\/a><\/noindex> mis v\u00f5imaldavad funktsiooni m\u00e4\u00e4ramisel m\u00e4\u00e4rata sisenemisargumendid ja automatiseerida nende arvu kontrolli (saa kirjutada 'sub foo ($left, $right) {' asemel 'sub foo { my($left, $right) = @_;}'). Lisaks plaanitakse vaikimisi toetada 'isa' operaatorit objekti kontrollimiseks, kas see on m\u00e4\u00e4ratud klassi v\u00f5i klassi, mis sellest s\u00f5ltub (if( $obj isa Package::Name ), ja ka postfix de-referentseerimise operatsioone '$sref-&gt;$*' asemel '${ $sref }', '$aref-&gt;@*' asemel '@{ $aref }' ja '$href-&gt;%{ ... }' asemel '%$href{ ... }'. <\/p>\n<p>Perl 7 vaikimisi keelamise kandidaadid on:<\/p>\n<ul>\n<li class=\"l\"> Kaudne objekti kutsumise s\u00fcntaks ('<noindex><a rel=\"nofollow\" href=\"https:\/\/metacpan.org\/pod\/indirect\">no feature qw(indirect)<\/a><\/noindex>') \u2014 vananenud viis objektide kutsumiseks, kus '-&gt;' asemel tuleb kasutada t\u00fchikut ('method $object @param' asemel '$object-&gt;$method(@param)'). N\u00e4iteks tuleks alati kasutada 'my $cgi = CGI-&gt;new' asemel 'my $cgi = new CGI'.\n<li class=\"l\"> T\u00fchjad failikirjeldajad ilma muutujate deklareerimiseta ('<noindex><a rel=\"nofollow\" href=\"https:\/\/metacpan.org\/pod\/bareword::filehandles\">no bareword::filehandle<\/a><\/noindex>') \u2014 konstruktsioonide nagu 'open FH, $file' kasutamine toob kaasa vea; tuleb kasutada 'open my $fh, $file'. Muudatus ei m\u00f5juta standardseid failikirjeldajaid STDIN, STDOUT, STDERR, ARGV, ARGVOUT ja DATA.\n<li class=\"l\"> Vale mitmem\u00f5\u00f5tmelised massiivid ja h\u00e4sit Perl 4 stiilis ('<noindex><a rel=\"nofollow\" href=\"https:\/\/metacpan.org\/pod\/multidimensional\">no multidimensional<\/a><\/noindex>&#171;).<br \/>\nN\u00e4iteks '$hash{1, 2}' m\u00e4\u00e4ramine toob kaasa vea; tuleb kasutada vahemassiivi, n\u00e4iteks '$hash{join($;, 1, 2)}'.<\/p>\n<li class=\"l\"> Protot\u00fc\u00fcpide deklareerimine Perl 4 stiilis (kui kasutada 'use :prototype()').\n<\/ul>\n<p>Kaugel tulevikus plaanitakse vaikimisi kaasata Unicode'i toetus, mis vabastab arendajad 'use utf8' m\u00e4\u00e4ramisest koodis. Moodulite ja skriptide puhul, kus esinevad probleemid uute vaikeseadistustega, on v\u00f5imalik taastada Perl 5 k\u00e4itumine, lisades koodile rea 'use compat::perl5'. \u00dcksikud seadistused j\u00e4\u00e4vad alles ja neid saab eraldi muuta.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53226\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0430 \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0449\u0435\u0439 \u0441\u0435\u0433\u043e\u0434\u043d\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0437\u044b\u043a\u0430 Perl \u0430\u043d\u043e\u043d\u0441\u0438\u0440\u043e\u0432\u0430\u043d \u043f\u0440\u043e\u0435\u043a\u0442 Perl 7, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043b\u0430\u0432\u043d\u043e \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0442 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0432\u0435\u0442\u043a\u0438 Perl 5 \u0431\u0435\u0437 \u0432\u043d\u0435\u0441\u0435\u043d\u0438\u044f \u0440\u0430\u0434\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0445 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439. Perl 7 \u0431\u0443\u0434\u0435\u0442 \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a\u0443 Perl 5.32.0, \u0437\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u0438\u043d\u044b\u0445 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043a \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e, \u043b\u0443\u0447\u0448\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0439 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438. \u0412 \u043e\u0441\u0442\u0430\u043b\u044c\u043d\u043e\u043c Perl 7 \u043e\u0441\u0442\u0430\u043d\u0435\u0442\u0441\u044f \u0442\u0435\u043c \u0436\u0435 Perl 5 \u0438 \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u0442 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0440\u0430\u043d\u0435\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-86435","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0430 \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0449\u0435\u0439 \u0441\u0435\u0433\u043e\u0434\u043d\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0437\u044b\u043a\u0430 Perl \u0430\u043d\u043e\u043d\u0441\u0438\u0440\u043e\u0432\u0430\u043d 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