{"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\/fr\/blog\/news\/re2c-2-0","title":{"rendered":"re2c 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Le lundi 20 juillet, la version de re2c - le g\u00e9n\u00e9rateur d'analyseurs lexicaux rapides - a \u00e9t\u00e9 publi\u00e9e.<br \/>\nPrincipales modifications :<\/p>\n<ul>\n<li>\n<p>Ajout de la prise en charge du langage Go<br \/>\n(activ\u00e9 soit par l'option &#8212;lang go pour re2c, soit sous la forme d'un programme distinct re2go).<br \/>\nLa documentation pour C et Go est g\u00e9n\u00e9r\u00e9e \u00e0 partir du m\u00eame texte, mais avec des<br \/>\nexemples de code diff\u00e9rents. Le sous-syst\u00e8me de g\u00e9n\u00e9ration de code a \u00e9t\u00e9 compl\u00e8tement retravaill\u00e9 dans re2c, ce qui<br \/>\ndevrait faciliter la prise en charge de nouveaux langages \u00e0 l'avenir.<\/p>\n<\/li>\n<li>\n<noindex><\/p>\n<p>Ajout d'un syst\u00e8me de construction alternatif bas\u00e9 sur CMake (merci <a rel=\"nofollow\" href=\"https:\/\/github.com\/ligfx\">ligfx<\/a>!).<\/noindex><br \/>\nDes tentatives pour porter re2c sur CMake ont \u00e9t\u00e9 faites depuis longtemps, mais personne avant ligfx n'a<br \/>\npropos\u00e9 de solution compl\u00e8te.<br \/>\nL'ancien syst\u00e8me de construction sur Autotools continue d'\u00eatre pris en charge et utilis\u00e9,<br \/>\net il n'y a pas de plans \u00e0 court terme pour y renoncer (en partie pour ne pas cr\u00e9er<br \/>\nde probl\u00e8mes pour les d\u00e9veloppeurs de distributions, en partie parce que l'ancien syst\u00e8me de construction<br \/>\nest plus stable et concis que le nouveau).<br \/>\nLes deux syst\u00e8mes sont continuellement test\u00e9s gr\u00e2ce \u00e0 Travis CI.<\/p>\n<\/li>\n<li>\n<p>Ajout de la possibilit\u00e9 de sp\u00e9cifier le code d'interface dans les configurations lors de l'utilisation<br \/>\nd\u2019une API g\u00e9n\u00e9rique. Auparavant, la plupart des API devaient \u00eatre sp\u00e9cifi\u00e9es sous forme de<br \/>\nfonctions ou de macros fonctionnelles. Maintenant, elles peuvent \u00eatre sp\u00e9cifi\u00e9es sous forme de cha\u00eenes arbitraires<br \/>\navec des param\u00e8tres de mod\u00e8le nomm\u00e9s du type @@{name} ou simplement @@ (si<br \/>\nle param\u00e8tre est unique et qu'il n'y a pas d'ambigu\u00eft\u00e9). Le style de l\u2019API est d\u00e9fini par la configuration<br \/>\nre2c:api:style (la valeur functions d\u00e9finit le style fonctionnel, tandis que free-form - le style libre).<\/p>\n<\/li>\n<li>\n<p>Am\u00e9lioration du fonctionnement de l'option -c, &#8212;start-conditions, permettant de combiner plusieurs<br \/>\nanalyseurs lexicaux interconnect\u00e9s dans un m\u00eame bloc re2c. Il est maintenant possible d'utiliser<br \/>\ndes blocs normaux aux c\u00f4t\u00e9s de blocs conditionnels et de sp\u00e9cifier plusieurs blocs conditionnels non li\u00e9s<br \/>\ndans un m\u00eame fichier.<br \/>\nAm\u00e9lioration du fonctionnement de l'option -r, &#8212;reuse (r\u00e9utilisation de code d'un bloc<br \/>\ndans d'autres blocs) en combinaison avec les options -c, &#8212;start-conditions et -f, &#8212;storable-state.<br \/>\n(analyseur avec un \u00e9tat sauvegard\u00e9, qui peut \u00eatre interrompu \u00e0 tout moment<br \/>\net repris plus tard).<\/p>\n<\/li>\n<li>\n<p>Correction d'un bug dans l'algorithme r\u00e9cemment ajout\u00e9 pour traiter la fin des donn\u00e9es d'entr\u00e9e<br \/>\n(r\u00e8gle EOF), qui entra\u00eenait dans de rares cas un traitement incorrect<br \/>\ndes r\u00e8gles chevauchantes.<\/p>\n<\/li>\n<li>\n<p>Simplification du processus de d\u00e9marrage. Auparavant, le syst\u00e8me de construction tentait de trouver dynamiquement re2c d\u00e9j\u00e0<br \/>\nconstruit, qu\u2019on pourrait utiliser pour se recompiler lui-m\u00eame.<br \/>\nCela entra\u00eenait des d\u00e9pendances incorrectes (car le graphe des d\u00e9pendances devenait<br \/>\ndynamique, ce que la plupart des syst\u00e8mes de construction n'appr\u00e9cient pas).<br \/>\nMaintenant, pour reconstruire les analyseurs, il est n\u00e9cessaire de<br \/>\nconfigurer explicitement le syst\u00e8me de construction et de d\u00e9finir la variable RE2C_FOR_BUILD.<\/p>\n<\/li>\n<\/ul>\n<p>Merci \u00e0 tous ceux qui ont particip\u00e9 \u00e0 la pr\u00e9paration de cette version !<\/p>\n<p>Source : <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 5.0.2 - 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