替换掉多余的回车符号

 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0042)http://local-m.smart.hangame.com/index.jsp -->
<HTML lang=ko xml:lang="ko">
<HEAD>
<TITLE>Test</TITLE>
<META content="text/html; charset=utf-8" http-equiv=Content-Type>
<META name=viewport content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no, target-densitydpi=medium-dpi">

<LINK rel=stylesheet type=text/css href="test.css">
<script type="text/javascript" language="javascript">
	function cleanText() {
	    var textare = document.getElementById("feedInsert").value;

		var cr = textare.match(/[\r\n]{2,}/g);   
		var a = textare.replace(/[\r\n]{2,}/g,"\r\n"); 
		 document.getElementById("feedInsert").value = a;

	}
</script>
</HEAD>
<BODY>
	<div id="foo" style="width">
		<input type="text" class="input_box" id="testText1" value="123"/>
		<textarea id="feedInsert" name="content" cols="70" rows="5" onclick="cleanText();"/></textarea>
	</div>
	
</BODY>

java

 private String formateContent(String content) {
        Pattern pattern = Pattern.compile("(\r\n)\\1{1,}");   
        Matcher matcher = pattern.matcher(content);   
  
       return matcher.replaceAll("\n"); 
 }


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