{"id":120643,"date":"2024-11-21T01:09:45","date_gmt":"2024-11-20T23:09:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/re2c-4-0"},"modified":"2024-11-21T01:09:45","modified_gmt":"2024-11-20T23:09:45","slug":"re2c-4-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/re2c-4-0","title":{"rendered":"re2c 4.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

<\/p>\n

El martes 19 de noviembre se present\u00f3 el lanzamiento re2c<\/a> – generador de analizadores l\u00e9xicos (tambi\u00e9n conocido como compilador de expresiones regulares a c\u00f3digo en el lenguaje de programaci\u00f3n de destino). re2c se especializa en la generaci\u00f3n de l\u00e9xicos r\u00e1pidos y f\u00e1ciles de integrar. Se diferencia de su conocido an\u00e1logo flex por su interfaz flexible, la generaci\u00f3n de l\u00e9xicos optimizados sin tablas y el soporte para extracciones de subcoincidencias basadas en aut\u00f3matas finitos deterministas con etiquetas (TDFA<\/a>). re2c se utiliza en proyectos donde la velocidad del l\u00e9xer es crucial, como en Ninja y PHP.<\/p>\n

<\/noindex><\/noindex> <\/p>\n

En la versi\u00f3n 4.0, se reestructur\u00f3 radicalmente el subsistema de generaci\u00f3n de c\u00f3digo, lo que permiti\u00f3 a\u00f1adir soporte para ocho nuevos lenguajes (D, Haskell, Java, JavaScript, OCaml, Python, V, Zig) adem\u00e1s de los ya admitidos (C\/C++, Go, Rust), as\u00ed como un mecanismo general para a\u00f1adir nuevos lenguajes a trav\u00e9s de archivos de configuraci\u00f3n. El generador de c\u00f3digo es responsable de traducir el aut\u00f3mata finito ya construido y optimizado a c\u00f3digo, es decir, su tarea es seleccionar las construcciones de control, tipos de datos y modelo de programa adecuados para el lenguaje de destino, etc. Anteriormente, toda esta l\u00f3gica era parte del c\u00f3digo fuente de re2c, y para modificarla o a\u00f1adir un nuevo lenguaje, era necesario parchear el c\u00f3digo fuente y recompilar re2c. Dichos parches no se aceptaban en el repositorio principal sin la implementaci\u00f3n de un conjunto est\u00e1ndar de ejemplos y pruebas, lo que complicaba a\u00fan m\u00e1s todo el proceso. Ahora toda esta l\u00f3gica se ha trasladado a archivos de sintaxis<\/a> – archivos de configuraci\u00f3n de texto que pueden ser proporcionados por el usuario (por defecto, re2c utiliza los est\u00e1ndares). El c\u00f3digo fuente de re2c est\u00e1 completamente libre de los detalles de un lenguaje espec\u00edfico y se basa \u00fanicamente en el archivo sint\u00e1ctico. El usuario puede redefinir parcialmente un archivo sint\u00e1ctico existente o escribir uno nuevo desde cero. Para todos los lenguajes oficialmente soportados hay documentaci\u00f3n completa con ejemplos<\/a>.<\/p>\n

<\/noindex> <\/p>\n

Por cierto, la propia idea de los archivos de sintaxis surgi\u00f3 gracias a un comentario en LOR<\/a>, gracias a \"re2cthe_coder<\/a>.<\/p>\n

<\/noindex> <\/p>\n

El lanzamiento incluy\u00f3 muchos otros cambios para simplificar la interfaz de usuario, mejorar el manejo de grupos de captura (capturing groups), y tambi\u00e9n se a\u00f1adi\u00f3 un entorno en l\u00ednea para editar y compilar ejemplos: http:\/\/re2c.org\/playground<\/a>.<\/p>\n

<\/noindex><\/p>\n

Fuente: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412\u043e \u0432\u0442\u043e\u0440\u043d\u0438\u043a, 19 \u043d\u043e\u044f\u0431\u0440\u044f, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 re2c – \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u043b\u0435\u043a\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0430\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 (\u043e\u043d \u0436\u0435 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440 \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u044b\u0445 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0439 \u0432 \u043a\u043e\u0434 \u043d\u0430 \u0446\u0435\u043b\u0435\u0432\u043e\u043c \u044f\u0437\u044b\u043a\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f). re2c \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043d\u0430 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u0431\u044b\u0441\u0442\u0440\u044b\u0445 \u0438 \u043b\u0435\u0433\u043a\u043e \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u043b\u0435\u043a\u0441\u0435\u0440\u043e\u0432. \u041e\u043d \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u0431\u043e\u043b\u0435\u0435 \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e\u0433\u043e \u0430\u043d\u0430\u043b\u043e\u0433\u0430 flex \u0433\u0438\u0431\u043a\u0438\u043c \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u043c, \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0435\u0439 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043d\u0435\u0442\u0430\u0431\u043b\u0438\u0447\u043d\u044b\u0445 \u043b\u0435\u043a\u0441\u0435\u0440\u043e\u0432 \u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 \u0437\u0430\u0445\u0432\u0430\u0442\u043e\u0432 (submatch extraction) \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u0434\u0435\u0442\u0435\u0440\u043c\u0438\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043d\u0435\u0447\u043d\u044b\u0445 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u043e\u0432 \u0441 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":120644,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-120643","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47re2c 4.0 | ProHoster","description":"El martes 19 de noviembre se present\u00f3 la versi\u00f3n de re2c, un generador de analizadores l\u00e9xicos (tambi\u00e9n conocido como compilador de 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