;(function(document){
var pres = document.getElementsByTagName("pre")
for(var i=pres.length; i--; ){
var el = makeOl(pres[i])
pres[i].appendChild(el)
}
function makeOl(pre){
var ol = document.createElement("ol")
, li = document.createElement("li")
, df = document.createDocumentFragment()
, br = pre.innerHTML.match(/\n/g) || 0
ol.className = "preLine"
ol.setAttribute("role", "presentation")
// no lang, no line-number
if( pre.className && ! /lang-./.test(pre.className) ){
br.length += 1
}
for(var i=br.length; i--; ){
var li2 = li.cloneNode(true)
df.appendChild(li2)
}
ol.appendChild(df)
return ol
}
})(document)
