Created
May 11, 2012 16:22
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Add line number for text in element "<pre><code>".
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//add line num for the code in Elenment "<pre><code>" | |
function addLineNum() | |
{ | |
try { | |
var mycode = document.getElementsByTagName("code"); | |
var space = /^[ \t\b]*$/; | |
//var times = mycode.length; | |
for (var loop = 0; loop < mycode.length; ) { | |
var s = mycode[loop]; | |
var p = s.parentNode; | |
if (p.nodeName != "pre" && p.nodeName != "PRE") { | |
loop++; | |
continue; | |
} | |
var text = s.innerHTML.split("\n"); | |
var newol = document.createElement("ol"); | |
for (var i = 0; i < text.length - 1; i++) { | |
var newli = document.createElement("li"); | |
//var newspan = document.createElement("span"); | |
newli.innerHTML = text[i]; | |
//newspan.innerHTML = text[i]; | |
//newli.appendChild(newspan); | |
newol.appendChild(newli); | |
} | |
if (space.test(text[i]) == false) { // i = text.length - 1; | |
var newli = document.createElement("li"); | |
newli.innerHTML = text[i]; | |
newol.appendChild(newli); | |
} | |
p.replaceChild(newol, s); | |
} | |
//alert(mycode.length); | |
} | |
catch(err){ | |
alert("Error Massage:" + err); | |
} | |
} |
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replaceChild(newol, s)
之后数组mycode
就变化了, 具体变化视情况而定.<pre>
下的<code>
时显示错误.<code>
有时不能显示的问题.