if (document.selection.isempty)
nFlags=eeFindNext | eeReplaceAll | eeFindReplaceRegExp;
else 
nFlags=eeFindNext | eeReplaceSelonly | eeReplaceAll | eeFindReplaceRegExp;
document.selection.Replace(^[　st]*r?n,,nFlags);
document.selection.Replace(r,\r,nFlags);
document.selection.Replace(n,\n,nFlags);
nclick="copycode($('code0'));">復制代碼

nFlags=eeFindNext | eeReplaceAll;
document.selection.Replace(^[　st]*r?n,,nFlags);
document.selection.Replace(r,r,nFlags);
document.selection.Replace(n,n,nFlags);
nclick="copycode($('code1'));">復制代碼

on^[　st]*r?nR
onrrR
onnnR
nclick="copycode($('code2'));">復制代碼