{"id":152384,"date":"2025-12-22T23:11:58","date_gmt":"2025-12-22T21:11:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-yazyk-programmirovaniya-lua-5-5"},"modified":"2025-12-22T23:11:58","modified_gmt":"2025-12-22T21:11:58","slug":"dostupen-yazyk-programmirovaniya-lua-5-5","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/dostupen-yazyk-programmirovaniya-lua-5-5","title":{"rendered":"Na voljo je programski jezik Lua 5.5","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po petih letih razvoja je na voljo izdaja Lua 5.5, hitrega in kompaktnega skriptnega jezika, ki je pridobil \u0161iroko uporabo kot vgrajen jezik za dolo\u010danje konfiguracije in pisanje raz\u0161iritev. Koda interpreterja Lua je napisana v jeziku C in se distribuira pod licenco MIT.    <\/p>\n<p>Lua zdru\u017euje preprost procedurovani sintaksis z mo\u017enostmi opisovanja podatkov preko uporabe asociativnih tabel in raz\u0161irljive semantike jezika. V Lua se uporablja dinami\u010dna tipizacija, jezikovne konstrukcije pa se pretvorijo v bajtno kodo, ki te\u010de na registrski virtualni ma\u0161ini z avtomatskim zbiranjem smeti. Interpreter je oblikovan v obliki knji\u017enice, ki jo je mogo\u010de integrirati v projekte v jezikih C in C++.      <\/p>\n<p>Glavne novosti:  <\/p>\n<ul>\n<li class=\"l\"> Za ve\u010dino operacij zbiranja smeti je uporabljen inkrementalni na\u010din, pri katerem se cikel zbiranja smeti razdeli na posamezne korake, ki se izmenjujejo z izvajanjem programa, kar omogo\u010da, da se izognemo dolgim prekinitev pri izvajanju aplikacij z veliko \u0161tevilo objektov v pomnilniku.\n<li class=\"l\"> Predlagana je kompaktna implementacija tabel, ki zahteva 60 % manj pomnilnika za tabele s enotnimi podatki (prihranki so dose\u017eeni, ker se podatki o tipu shranijo ne za vsak element, temve\u010d za skupino elementov).\n<li class=\"l\"> Dodana je mo\u017enost izrecnega deklariranja globalnih spremenljivk v vseh blokih kode z uporabo klju\u010dne besede \u00abglobal\u00bb. Ko so v bloku kode izrazi s klju\u010dnimi besedami \u00abglobal\u00bb, morajo biti vse spremenljivke izrecno deklarirane. \u010ce izjava \u00abglobal\u00bb manjka, se implicitno nastavi izraz \u00abglobal *\u00bb, pri \u010demer ohrani staro vedenje in se vse spremenljivke obravnavajo kot globalne. Dodan je tudi izraz \u00abglobal *\u00bb, pri katerem postanejo vse implicitno dolo\u010dene globalne spremenljivke dostopne v na\u010dinu samo za branje.           X = 1       \u2014 Ok, X \u2014 globalna spremenljivka, staro vedenje privzeto.       do         global Y  \u2014 deklaracija spremenljivke Y kot globalne, vse druge spremenljivke v bloku morajo biti izrecno deklarirane         Y = 1     \u2014 Ok, spremenljivka Y je bila prej definirana         X = 1     \u2014 Napaka, spremenljivka X ni definirana       end       X = 2       \u2014 Ok, zunaj bloka global sledi staro vedenje.\n<li class=\"l\"> Upravljalne spremenljivke, navedene v zankah \u00abfor\u00bb, so zdaj dostopne samo za branje in jih ni mogo\u010de spremeniti v telesu zanke. Na primer, spremenljivka i, deklarirana v zanki \u00abfor i = 1, 5 do\u00bb, je ne moremo spremeniti v telesu zanke.\n<li class=\"l\"> Prilikom ispisivanja brojeva sa pomi\u010dnom zarezom preko funkcije print sada se ispisuje dovoljan broj cifara za ispravno obrnuto pretvaranje iz stringa u izvorni oblik.\n<li class=\"l\"> Pove\u0107an je dozvoljeni broj nivoa ugnje\u017edenosti konstruktora tabela.\n<li class=\"l\"> Dodata je funkcija table.create(nseq, nrec) za dodavanje prazne tabele i prethodno dodeljivanje memorije za navedeni broj elemenata.\n<li class=\"l\"> U funkciji utf8.offset obezbe\u0111en je povratak ne samo bajtovnog pomaka do po\u010detka simbola, ve\u0107 i pozicije kraja simbola.\n<li class=\"l\"> Dodata je podr\u0161ka za kreiranje spolja\u0161njih stringova, sme\u0161tenih u memoriji koja nije pod kontrolom Lua cirkulatora.\n<li class=\"l\"> Dodata je funkcija luaL_openselectedlibs za u\u010ditavanje odabrane biblioteke, kao i funkcija luaL_makeseed, koja formira seed za funkciju lua_newstate.\n<li class=\"l\"> V lua.c je omogo\u010deno dinami\u010dno nalaganje knji\u017enice \u2018readline\u2019 ob njeni prisotnosti (\u010de je knji\u017enica v sistemu \u2014 se nalo\u017ei in postanejo dostopne funkcije za urejanje nizov).\n<li class=\"l\"> Omogo\u010dena je optimizacija za var\u010devanje s spominom pri nalaganju vnaprej prevedenega bajtkode \u2014 Lua zdaj lahko ponovno uporabi spomin v nekaterih notranjih strukturah brez ustvarjanja dvojnikov pri nalaganju podvojenega bajtkode.\n<li class=\"l\"> Zagotovljeno je ponovno uporabo vseh nizov v operacijah \u00abdump\u00bb in \u00abundump\u00bb.\n<li class=\"l\"> U pomo\u0107nim baferima obezbe\u0111eno je ponovno kori\u0161\u0107enje bafera (bez kopiranja u novi bafer) prilikom kreiranja finalnog stringa.        <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64476\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u043f\u044f\u0442\u0438 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Lua 5.5, \u0431\u044b\u0441\u0442\u0440\u043e\u0433\u043e \u0438 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0433\u043e \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0432\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0435\u0433\u043e \u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 \u0434\u043b\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u0438 \u0434\u043b\u044f \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0438\u044f \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0439. \u041a\u043e\u0434 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0430 Lua \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. Lua \u0441\u043e\u0447\u0435\u0442\u0430\u0435\u0442 \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u043f\u0440\u043e\u0446\u0435\u0434\u0443\u0440\u043d\u044b\u0439 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 \u0441 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044f\u043c\u0438 \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0447\u0435\u0440\u0435\u0437 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0430\u0441\u0441\u043e\u0446\u0438\u0430\u0442\u0438\u0432\u043d\u044b\u0445 \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u0432 \u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u0435\u043c\u043e\u0439 [&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-152384","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u044f\u0442\u0438 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Lua 5.5, \u0431\u044b\u0441\u0442\u0440\u043e\u0433\u043e \u0438 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0433\u043e \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0432\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 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