{"id":105022,"date":"2022-09-05T09:36:46","date_gmt":"2022-09-05T07:36:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-interpretatora-gnu-awk-5-2"},"modified":"2022-09-05T09:36:46","modified_gmt":"2022-09-05T07:36:46","slug":"novaya-versiya-interpretatora-gnu-awk-5-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/novaya-versiya-interpretatora-gnu-awk-5-2","title":{"rendered":"Nov\u00e1 verze interpret\u00e1toru GNU Awk 5.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byl uveden nov\u00fd vyd\u00e1n\u00ed implementace programovac\u00edho jazyka AWK od projektu GNU \u2014 Gawk 5.2.0. AWK byl vyvinut v 70. letech minul\u00e9ho stolet\u00ed a od poloviny 80. let nedo\u0161lo k \u017e\u00e1dn\u00fdm v\u00fdznamn\u00fdm zm\u011bn\u00e1m, kter\u00e9 definovaly z\u00e1kladn\u00ed kostru jazyka, co\u017e umo\u017enilo zachovat po cel\u00e9 desetilet\u00ed jeho p\u016fvodn\u00ed stabilitu a jednoduchost. I p\u0159es sv\u016fj pokro\u010dil\u00fd v\u011bk je AWK st\u00e1le aktivn\u011b pou\u017e\u00edv\u00e1n administr\u00e1tory k prov\u00e1d\u011bn\u00ed rutinn\u00edch prac\u00ed spojen\u00fdch s anal\u00fdzou r\u016fzn\u00fdch textov\u00fdch soubor\u016f a generov\u00e1n\u00edm jednoduch\u00e9 v\u00fdsledn\u00e9 statistiky.      <\/p>\n<p>Kl\u00ed\u010dov\u00e9 zm\u011bny:  <\/p>\n<ul>\n<li class=\"l\"> Byla p\u0159id\u00e1na experiment\u00e1ln\u00ed podpora pro spr\u00e1vce pam\u011bti pma (persistent malloc), kter\u00e1 umo\u017e\u0148uje uchov\u00e1vat hodnoty prom\u011bnn\u00fdch, pol\u00ed a u\u017eivatelsk\u00fdch funkc\u00ed mezi r\u016fzn\u00fdmi b\u011bhy awk.\n<li class=\"l\"> Podpora aritmetiky s vysokou p\u0159esnost\u00ed, implementovan\u00e1 pomoc\u00ed knihovny MPFR, byla vy\u0159azena z odpov\u011bdnosti \u00fadr\u017eby GNU Awk a p\u0159ed\u00e1na extern\u00edmu nad\u0161enci. Je poznamen\u00e1no, \u017ee implementace re\u017eimu MPFR v GNU Awk je pova\u017eov\u00e1na za chybu. V p\u0159\u00edpad\u011b zm\u011bny stavu s \u00fadr\u017ebou je pl\u00e1nov\u00e1no tuto funk\u010dnost \u00fapln\u011b odstranit z GNU Awk.\n<li class=\"l\"> Byly aktualizov\u00e1ny komponenty buildovac\u00ed infrastruktury Libtool 2.4.7 a Bison 3.8.2.\n<li class=\"l\"> Byla zm\u011bn\u011bna logika porovn\u00e1v\u00e1n\u00ed \u010d\u00edsel, kter\u00e1 byla slad\u011bna s logikou pou\u017e\u00edvanou v jazyce C. Pro u\u017eivatele zm\u011bna hlavn\u011b zasahuje do porovn\u00e1n\u00ed hodnot Infinity a NaN s b\u011b\u017en\u00fdmi \u010d\u00edsly.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost pou\u017eit\u00ed hashovac\u00ed funkce FNV1-A v asociativn\u00edch pol\u00edch, kter\u00e1 se aktivuje nastaven\u00edm prom\u011bnn\u00e9 prost\u0159ed\u00ed AWK_HASH na hodnotu \u201efnv1a\u201c.\n<li class=\"l\"> Byla odstran\u011bna podpora pro buildov\u00e1n\u00ed pomoc\u00ed CMake (podpora CMake nebyla vyu\u017e\u00edv\u00e1na a p\u011bt let nebyla aktualizov\u00e1na).\n<li class=\"l\"> Byla p\u0159id\u00e1na funkce mkbool() pro vytv\u00e1\u0159en\u00ed logick\u00fdch hodnot, kter\u00e9 jsou \u010d\u00edsly, ale zpracov\u00e1vaj\u00ed se jako typ Boolean.\n<li class=\"l\"> V re\u017eimu BWK je p\u0159i nastaven\u00ed p\u0159\u00edznaku \u201e--traditional\u201c ve v\u00fdchoz\u00edm nastaven\u00ed aktivov\u00e1na podpora v\u00fdraz\u016f pro definici rozsah\u016f, kter\u00e9 byly d\u0159\u00edve zahrnuty volbou \u201e-r\u201c (\u201e--re-interval\u201c).\n<li class=\"l\"> V roz\u0161\u00ed\u0159en\u00ed rwarray byly navr\u017eeny nov\u00e9 funkce writeall() a readall() pro z\u00e1pis a \u010dten\u00ed v\u0161ech prom\u011bnn\u00fdch a pol\u00ed najednou.\n<li class=\"l\"> Byl p\u0159id\u00e1n skript gawkbug pro zas\u00edl\u00e1n\u00ed informac\u00ed o chyb\u00e1ch.\n<li class=\"l\"> Zaji\u0161t\u011bno okam\u017eit\u00e9 ukon\u010den\u00ed pr\u00e1ce p\u0159i zji\u0161t\u011bn\u00ed syntaktick\u00fdch chyb, co\u017e \u0159e\u0161\u00ed probl\u00e9my s vyu\u017e\u00edv\u00e1n\u00edm n\u00e1stroj\u016f pro fuzzing-testov\u00e1n\u00ed.\n<li class=\"l\"> Podpora opera\u010dn\u00edch syst\u00e9m\u016f OS\/2 a VAX\/VMS byla ukon\u010dena.    <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57732\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f AWK \u043e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 GNU &#8212; Gawk 5.2.0. AWK \u0431\u044b\u043b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d \u0432 70-\u0445 \u0433\u043e\u0434\u0430\u0445 \u043f\u0440\u043e\u0448\u043b\u043e\u0433\u043e \u0432\u0435\u043a\u0430 \u0438 \u043d\u0435 \u043f\u0440\u0435\u0442\u0435\u0440\u043f\u0435\u043b \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0441 \u0441\u0435\u0440\u0435\u0434\u0438\u043d\u044b 80-\u0445 \u0433\u043e\u0434\u043e\u0432, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0431\u044b\u043b \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u043a\u043e\u0441\u0442\u044f\u043a \u044f\u0437\u044b\u043a\u0430, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u043d\u0430 \u043f\u0440\u043e\u0442\u044f\u0436\u0435\u043d\u0438\u0438 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0445 \u0434\u0435\u0441\u044f\u0442\u0438\u043b\u0435\u0442\u0438\u0439 \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u044c \u043f\u0435\u0440\u0432\u043e\u0437\u0434\u0430\u043d\u043d\u0443\u044e \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0438 \u043f\u0440\u043e\u0441\u0442\u043e\u0442\u0443 \u044f\u0437\u044b\u043a\u0430. \u041d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u043f\u0440\u0435\u043a\u043b\u043e\u043d\u043d\u044b\u0439 \u0432\u043e\u0437\u0440\u0430\u0441\u0442, AWK \u0434\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-105022","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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