{"version":"1.0","provider_name":"TechEdu","provider_url":"https:\/\/techlib.net\/techedu","title":"Forma normal de Backus (BNF) - Definici\u00f3n y explicaci\u00f3n","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"AJzEPYyzrJ\"><a href=\"https:\/\/techlib.net\/techedu\/forma-normal-de-backus-bnf\/\">Forma normal de Backus (BNF)<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/techlib.net\/techedu\/forma-normal-de-backus-bnf\/embed\/#?secret=AJzEPYyzrJ\" width=\"600\" height=\"338\" title=\"\u00abForma normal de Backus (BNF)\u00bb \u2014 TechEdu\" data-secret=\"AJzEPYyzrJ\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/techlib.net\/techedu\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"La forma normal de Backus (BNF) es un metalenguaje utilizado para describir la sintaxis de los lenguajes formales. Lleva el nombre de su inventor, John Backus. En la forma normal de Backus, un lenguaje es descrito por un conjunto de reglas de la forma: ::= donde es una construcci\u00f3n del lenguaje, y es una secuencia ... Leer m\u00e1s"}