网易论坛中自动排版的实现[转]

取自网易论坛，可以把textarea格式化成类似段落+首行缩进2个汉字的效果。

thebody为容器名，根据需要可修改。

function format(){
var body = "/n"+document.getElementById("thebody").value;
body = body.replace(/ |　/ig,"");
body = body.replace(//r/n/ig,"/n");
body = body.replace(//n/n/ig,"/n");
body = body.replace(//n/n/ig,"/n");
body = body.replace(//n/n/ig,"/n");
body = body.replace(//n/n/ig,"/n");
body = body.replace(//n/ig,"/n/n　　");
body = body.replace("/n/n","");
document.getElementById("thebody").value=body;
}