{"id":89487,"date":"2020-07-23T01:42:30","date_gmt":"2020-07-22T23:42:30","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/re2c-2-0"},"modified":"2020-07-23T01:42:30","modified_gmt":"2020-07-22T23:42:30","slug":"re2c-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/re2c-2-0","title":{"rendered":"re2c 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>J\u00falius 20-\u00e1n, h\u00e9tf\u0151n megjelent a re2c kiad\u00e1sa \u2013 a gyors lexikai elemz\u0151k gener\u00e1tora.<br \/>\nF\u0151bb v\u00e1ltoz\u00e1sok:<\/p>\n<ul>\n<li>\n<p>Hozz\u00e1adva a Go nyelv t\u00e1mogat\u00e1sa<br \/>\n(bekapcsolhat\u00f3 vagy az &#8212;lang go opci\u00f3val a re2c-hez, vagy k\u00fcl\u00f6n programk\u00e9nt a re2go-val).<br \/>\nA C \u00e9s Go dokument\u00e1ci\u00f3 ugyanabb\u00f3l a sz\u00f6vegb\u0151l gener\u00e1l\u00f3dik, de elt\u00e9r\u0151<br \/>\np\u00e9ldak\u00f3dokkal. A re2c k\u00f3dgener\u00e1l\u00f3 alrendszere teljesen \u00e1t lett dolgozva, ami<br \/>\nmegk\u00f6nny\u00edti az \u00faj nyelvek t\u00e1mogat\u00e1s\u00e1t a j\u00f6v\u0151ben.<\/p>\n<\/li>\n<li>\n<noindex><\/p>\n<p>Kieg\u00e9sz\u00edt\u0151 CMake build rendszer ker\u00fclt hozz\u00e1ad\u00e1sra (k\u00f6sz\u00f6net <a rel=\"nofollow\" href=\"https:\/\/github.com\/ligfx\">ligfx<\/a>!).<\/noindex><br \/>\nA re2c CMake-ra val\u00f3 \u00e1t\u00fcltet\u00e9si k\u00eds\u00e9rletei m\u00e1r r\u00e9g\u00f3ta folynak, de ligfx el\u0151tt senki sem<br \/>\naj\u00e1nlott teljes megold\u00e1st.<br \/>\nA r\u00e9gi Autotools build rendszert tov\u00e1bbra is t\u00e1mogatj\u00e1k \u00e9s haszn\u00e1lj\u00e1k,<br \/>\n\u00e9s a k\u00f6zeli j\u00f6v\u0151ben nincsenek tervek annak elhagy\u00e1s\u00e1ra (r\u00e9szben, hogy ne okozzon<br \/>\nprobl\u00e9m\u00e1t a disztrib\u00fatoroknak, r\u00e9szben pedig az\u00e9rt, mert a r\u00e9gi build rendszer<br \/>\nstabilabb \u00e9s t\u00f6m\u00f6rebb, mint az \u00faj).<br \/>\nMindk\u00e9t rendszer folyamatosan tesztelve van a Travis CI seg\u00edts\u00e9g\u00e9vel.<\/p>\n<\/li>\n<li>\n<p>Lehet\u0151s\u00e9g van interf\u00e9szk\u00f3d megad\u00e1s\u00e1ra az konfigur\u00e1ci\u00f3kban a<br \/>\ngeneric API haszn\u00e1lata mellett. Kor\u00e1bban a legt\u00f6bb API-t funkci\u00f3k vagy funkcion\u00e1lis makr\u00f3k form\u00e1j\u00e1ban kellett megadni.<br \/>\nMost m\u00e1r szabad sz\u00f6vegk\u00e9nt, n\u00e9vvel ell\u00e1tott sablonparam\u00e9terek form\u00e1j\u00e1ban is megadhat\u00f3k, mint p\u00e9ld\u00e1ul @@{name} vagy egyszer\u0171en @@ (ha<br \/>\ncsak egy param\u00e9ter van, \u00e9s nincs k\u00e9t\u00e9rtelm\u0171s\u00e9g). Az API st\u00edlus\u00e1t a re2c:api:style konfigur\u00e1ci\u00f3 hat\u00e1rozza meg (a functions \u00e9rt\u00e9k funkcion\u00e1lis st\u00edlust ad meg, m\u00edg a free-form a szabad form\u00e1t).<br \/>\nJavult az -c, \u2014start-conditions opci\u00f3 m\u0171k\u00f6d\u00e9se, amely lehet\u0151v\u00e9 teszi t\u00f6bb<br \/>\nre2c:api:style (a functions \u00e9rt\u00e9k funkcion\u00e1lis st\u00edlust hat\u00e1roz meg, m\u00edg a free-form \u2013 szabad form\u00e1t).<\/p>\n<\/li>\n<li>\n<p>Jav\u00edtott\u00e1k az -c, &#8212;start-conditions opci\u00f3 m\u0171k\u00f6d\u00e9s\u00e9t, amely lehet\u0151v\u00e9 teszi t\u00f6bb<br \/>\nblokk is l\u00e9trehozhat\u00f3 egy f\u00e1jlban.<br \/>\nJavult az -r, \u2014reuse (k\u00f3d \u00fajrafelhaszn\u00e1l\u00e1s egy blokkban<br \/>\nm\u00e1s blokkokban) m\u0171k\u00f6d\u00e9se az -c, \u2014start-conditions \u00e9s -f, \u2014storable-state opci\u00f3kkal kombin\u00e1lva<br \/>\nJav\u00edtott\u00e1k az -r, &#8212;reuse (k\u00f3d \u00fajrahaszn\u00e1lata egy blokkb\u00f3l<br \/>\nm\u00e1s blokkokban) a -c, &#8212;start-conditions \u00e9s -f, &#8212;storable-state opci\u00f3kkal.<br \/>\nJav\u00edtott\u00e1k a k\u00f6zelm\u00faltban hozz\u00e1adott EOF (End of File) feldolgoz\u00f3 algoritmus hib\u00e1j\u00e1t,<br \/>\namely ritka esetekben helytelen feldolgoz\u00e1si eredm\u00e9nyhez vezetett<\/p>\n<\/li>\n<li>\n<p>\u00e1tfed\u0151 szab\u00e1lyok eset\u00e9n.<br \/>\nEgyszer\u0171s\u00f6d\u00f6tt a bootstrapping folyamata. Kor\u00e1bban a build rendszer megpr\u00f3b\u00e1lta dinamikusan megtal\u00e1lni az m\u00e1r<br \/>\n\u00f6ssze\u00e1ll\u00edtott re2c-t, amely felhaszn\u00e1lhat\u00f3 lett volna \u00f6nmag\u00e1nak az \u00fajra\u00e9p\u00edt\u00e9s\u00e9re.<\/p>\n<\/li>\n<li>\n<p>Egyszer\u0171s\u00f6d\u00f6tt a bootstrap folyamat. Kor\u00e1bban a build rendszer dinamikusan pr\u00f3b\u00e1lta megkeresni a m\u00e1r<br \/>\n\u00f6ssze\u00e1ll\u00edtott re2c-t, amelyet saj\u00e1t mag\u00e1nak az \u00fajb\u00f3li \u00f6ssze\u00e1ll\u00edt\u00e1s\u00e1hoz haszn\u00e1lhatott.<br \/>\nEz hib\u00e1s f\u00fcgg\u0151s\u00e9gekhez vezetett (mivel a f\u00fcgg\u0151s\u00e9gi gr\u00e1f dinamikus lett, amit a legt\u00f6bb \u00e9p\u00edt\u00e9si rendszer nem szeret).<br \/>\ndinamikus, ami\u00e9rt a legt\u00f6bb build rendszer nem kedveli \u0151t).<br \/>\nMostant\u00f3l a lexer-ek \u00fajra\u00e9p\u00edt\u00e9s\u00e9hez kifejezetten konfigur\u00e1lni kell az \u00e9p\u00edt\u00e9si rendszert \u00e9s be kell \u00e1ll\u00edtani az RE2C_FOR_BUILD v\u00e1ltoz\u00f3t.<br \/>\nK\u00f6sz\u00f6net mindenkinek, aki r\u00e9szt vett ennek a kiad\u00e1snak az el\u0151k\u00e9sz\u00edt\u00e9s\u00e9ben!<\/p>\n<\/li>\n<\/ul>\n<p>\ud83e\udd47re2c 2.0 | ProHoster<\/p>\n<p>Forr\u00e1s: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/development\/15820642\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u043e\u043d\u0435\u0434\u0435\u043b\u044c\u043d\u0438\u043a 20 \u0438\u044e\u043b\u044f \u0432\u044b\u0448\u0435\u043b \u0440\u0435\u043b\u0438\u0437 re2c &ndash; \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u0431\u044b\u0441\u0442\u0440\u044b\u0445 \u043b\u0435\u043a\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0430\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u044f\u0437\u044b\u043a\u0430 Go (\u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0438\u043b\u0438 \u043e\u043f\u0446\u0438\u0435\u0439 &#8212;lang go \u0434\u043b\u044f re2c, \u0438\u043b\u0438 \u0432 \u0432\u0438\u0434\u0435 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0439 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b re2go). \u0414\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0434\u043b\u044f C \u0438 Go \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0438\u0437 \u043e\u0434\u043d\u043e\u0433\u043e \u0438 \u0442\u043e\u0433\u043e \u0436\u0435 \u0442\u0435\u043a\u0441\u0442\u0430, \u043d\u043e \u0441 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u043f\u0440\u0438\u043c\u0435\u0440\u0430\u043c\u0438 \u043a\u043e\u0434\u0430. \u041f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u0430 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u043a\u043e\u0434\u043e\u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u0432 re2c, \u0447\u0442\u043e [&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-89487","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u043e\u043d\u0435\u0434\u0435\u043b\u044c\u043d\u0438\u043a 20 \u0438\u044e\u043b\u044f \u0432\u044b\u0448\u0435\u043b \u0440\u0435\u043b\u0438\u0437 re2c \u2013 \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u0431\u044b\u0441\u0442\u0440\u044b\u0445 \u043b\u0435\u043a\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0430\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" 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