h5语义化标签处理 兼容ie8及以下

/**

• @preserve HTML5 Shiv 3.7.3 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
  */
  !function (a, b) {
  function c(a, b) {
  var c = a.createElement(“p”), d = a.getElementsByTagName(“head”)[0] || a.documentElement;
  return c.innerHTML = “x”, d.insertBefore(c.lastChild, d.firstChild)
  }

  function d() {
  var a = t.elements;
  return “string” == typeof a ? a.split(" ") : a
  }

  function e(a, b) {
  var c = t.elements;
  “string” != typeof c && (c = c.join(" “)), “string” != typeof a && (a = a.join(” ")), t.elements = c + " " + a, j(b)
  }

  function f(a) {
  var b = s[a[q]];
  return b || (b = {}, r++, a[q] = r, s[r] = b), b
  }

  function g(a, c, d) {
  if (c || (c = b), l) return c.createElement(a);
  d || (d = f©);
  var e;
  return e = d.cache[a] ? d.cache[a].cloneNode() : p.test(a) ? (d.cache[a] = d.createElem(a)).cloneNode() : d.createElem(a), !e.canHaveChildren || o.test(a) || e.tagUrn ? e : d.frag.appendChild(e)
  }

  function h(a, c) {
  if (a || (a = b), l) return a.createDocumentFragment();
  c = c || f(a);
  for (var e = c.frag.cloneNode(), g = 0, h = d(), i = h.length; i > g; g++) e.createElement(h[g]);
  return e
  }

  function i(a, b) {
  b.cache || (b.cache = {}, b.createElem = a.createElement, b.createFrag = a.createDocumentFragment, b.frag = b.createFrag()), a.createElement = function © {
  return t.shivMethods ? g(c, a, b) : b.createElem©
  }, a.createDocumentFragment = Function(“h,f”, “return function(){var n=f.cloneNode(),c=n.createElement;h.shivMethods&&(” + d().join().replace(/[\w-:]+/g, function (a) {
  return b.createElem(a), b.frag.createElement(a), ‘c("’ + a + ‘")’
  }) + “);return n}”)(t, b.frag)
  }

  function j(a) {
  a || (a = b);
  var d = f(a);
  return !t.shivCSS || k || d.hasCSS || (d.hasCSS = !!c(a, “article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}mark{background:#FF0;color:#000}template{display:none}”)), l || i(a, d), a
  }

  var k, l, m = “3.7.3”, n = a.html5 || {}, o = /^<|(?:button|map|select|textarea|object|iframe|option|optgroup)$/i,p={/}^{(}?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i,
  q = “_html5shiv”, r = 0, s = {};
  !function () {
  try {
  var a = b.createElement(“a”);
  a.innerHTML = “”, k = “hidden” in a, l = 1 == a.childNodes.length || function () {
  b.createElement(“a”);
  var a = b.createDocumentFragment();
  return “undefined” == typeof a.cloneNode || “undefined” == typeof a.createDocumentFragment || “undefined” == typeof a.createElement
  }()
  } catch © {
  k = !0, l = !0
  }
  }();
  var t = {
  elements: n.elements || “abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output picture progress section summary template time video”,
  version: m,
  shivCSS: n.shivCSS !== !1,
  supportsUnknownElements: l,
  shivMethods: n.shivMethods !== !1,
  type: “default”,
  shivDocument: j,
  createElement: g,
  createDocumentFragment: h,
  addElements: e
  };
  a.html5 = t, j(b), “object” == typeof module && module.exports && (module.exports = t)
  }(“undefined” != typeof window ? window : this, document);