ambar/_.md

## _.md

      
    Raw
  

              _.md
            
          
    在 pre 标签或具有 pre-wrap 样式的容器中，
para a 和 para b 之间有一个 TextNode 内容为 '\n' ，
此时执行 document.execCommand('formatblock', false, 'blockquote')
然后 para b 被克隆了。

Chrome/21.0.1180.75 Safari/537.1


## repro.html
<!DOCTYPE HTML>
<html lang="en-US">
<head>
	<meta charset="UTF-8">
	<title></title>
</head>
<body>

<div contentEditable>
<pre>
<p>para a</p>
<p>para b</p>
</pre>
</div>

<script>
var textNode = document.querySelector('p:first-child').nextSibling
var selection = document.getSelection()
var range = document.createRange()

selection.removeAllRanges()
range.setStart(textNode, 0)
range.setEnd(textNode, 0)
selection.addRange(range)

document.execCommand('formatblock', false, 'blockquote')
</script>
</body>
</html>
	<!DOCTYPE HTML>
	<html lang="en-US">
	<head>
	<meta charset="UTF-8">
	<title></title>
	</head>
	<body>

	<div contentEditable>
	<pre>
	<p>para a</p>
	<p>para b</p>
	</pre>
	</div>

	<script>
	var textNode = document.querySelector('p:first-child').nextSibling
	var selection = document.getSelection()
	var range = document.createRange()

	selection.removeAllRanges()
	range.setStart(textNode, 0)
	range.setEnd(textNode, 0)
	selection.addRange(range)

	document.execCommand('formatblock', false, 'blockquote')
	</script>
	</body>
	</html>