{"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\/it\/blog\/news\/novaya-versiya-interpretatora-gnu-awk-5-2","title":{"rendered":"Nuova versione dell'interprete GNU Awk 5.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata rilasciata una nuova versione del linguaggio di programmazione AWK dal progetto GNU \u2014 Gawk 5.2.0. AWK \u00e8 stato sviluppato negli anni '70 e non ha subito significativi cambiamenti dalla met\u00e0 degli anni '80, periodo in cui \u00e8 stata definita la struttura fondamentale del linguaggio, che ha permesso di mantenere la stabilit\u00e0 e la semplicit\u00e0 originali per diversi decenni. Nonostante la sua et\u00e0, AWK viene ancora ampiamente utilizzato dagli amministratori per eseguire attivit\u00e0 di routine legate all'analisi di vari tipi di file di testo e alla generazione di semplici statistiche sui risultati.      <\/p>\n<p>Principali modifiche:  <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stato aggiunto il supporto sperimentale per il gestore di memoria pma (persistent malloc), che consente di mantenere i valori delle variabili, degli array e delle funzioni utente tra le diverse esecuzioni di awk.\n<li class=\"l\"> Il supporto per l'aritmetica ad alta precisione, implementato tramite la libreria MPFR, \u00e8 stato rimosso dalla responsabilit\u00e0 del manutentore di GNU Awk ed \u00e8 stato trasferito a un entusiasta esterno. Si segnala che l'implementazione della modalit\u00e0 MPFR in GNU Awk \u00e8 considerata un errore. In caso di cambiamento di stato con la manutenzione, si prevede di rimuovere completamente tale funzionalit\u00e0 da GNU Awk.\n<li class=\"l\"> Aggiornati i componenti dell'infrastruttura di build Libtool 2.4.7 e Bison 3.8.2.\n<li class=\"l\"> Modificata la logica di confronto dei numeri, che \u00e8 stata allineata alla logica utilizzata nel linguaggio C. Per gli utenti, la modifica riguarda principalmente il confronto dei valori Infinity e NaN con numeri ordinari.\n<li class=\"l\"> \u00c8 ora possibile utilizzare la funzione hash FNV1-A negli array associativi, attivandola impostando la variabile d'ambiente AWK_HASH sul valore \u00abfnv1a\u00bb.\n<li class=\"l\"> Rimosso il supporto per la build utilizzando CMake (il codice di supporto CMake \u00e8 rimasto inutilizzato e non \u00e8 stato aggiornato per cinque anni).\n<li class=\"l\"> Aggiunta la funzione mkbool() per creare valori booleani, che sono numeri ma trattati come tipo Boolean.\n<li class=\"l\"> In modalit\u00e0 BWK, specificando il flag \u00ab--traditional\u00bb, il supporto per le espressioni di definizione dei range \u00e8 abilitato per impostazione predefinita, precedentemente attivato dall'opzione \u00ab-r\u00bb (\u00ab--re-interval\u00bb).\n<li class=\"l\"> Nell'estensione rwarray sono state proposte nuove funzioni writeall() e readall() per scrivere e leggere in un colpo solo tutte le variabili e gli array.\n<li class=\"l\"> Aggiunto lo script gawkbug per la segnalazione di errori.\n<li class=\"l\"> Garantito un arresto immediato in caso di errori di sintassi, risolvendo problemi nell'uso di strumenti per il fuzzing testing.\n<li class=\"l\"> Interrotta la supporto per i sistemi operativi OS\/2 e VAX\/VMS.    <\/ul>\n<p>Fonte: <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 5.0.0.1 - 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