(function($){
var trailing_whitespace=true
$.fn.truncate=function(options){
var opts=$.extend({},$.fn.truncate.defaults,options)
$(this).each(function(){
var content_length=$.trim(squeeze($(this).text())).length
if(content_length<=opts.max_length)
return
var actual_max_length=opts.max_length-opts.more.length-3
var truncated_node=recursivelyTruncate(this,actual_max_length)
var full_node=$(this).hide()
truncated_node.insertAfter(full_node)
findNodeForMore(truncated_node).append(' (<a href="#show more content">'+opts.more+'</a>)')
findNodeForLess(full_node).append(' (<a href="#show less content">'+opts.less+'</a>)')
truncated_node.find('a:last').click(function(){
truncated_node.hide();full_node.show();return false
})
full_node.find('a:last').click(function(){
truncated_node.show();full_node.hide();return false
})
})}
$.fn.truncate.defaults={
max_length: 100,
more: '…more',
less: 'less'}
function recursivelyTruncate(node,max_length){
return(node.nodeType==3)? truncateText(node,max_length): truncateNode(node,max_length)}
function truncateNode(node,max_length){
var node=$(node)
var new_node=node.clone().empty()
var truncatedChild
node.contents().each(function(){
var remaining_length=max_length-new_node.text().length
if(remaining_length==0)return
truncatedChild=recursivelyTruncate(this,remaining_length)
if(truncatedChild)new_node.append(truncatedChild)
})
return new_node}
function truncateText(node,max_length){
var text=squeeze(node.data)
if(trailing_whitespace)
text=text.replace(/^/,'')
trailing_whitespace=!!text.match(/$/)
var text=text.slice(0,max_length)
text=$('<div/>').text(text).html()
return text}
function squeeze(string){
return string.replace(/\s+/g,' ')}
function findNodeForMore(node){
var $node=$(node)
var last_child=$node.children(":last")
if(!last_child)return node
var display=last_child.css('display')
if(!display || display=='inline')return $node
return findNodeForMore(last_child)}
function findNodeForLess(node){
var $node=$(node)
var last_child=$node.children(":last")
if(last_child&&last_child.is('p'))return last_child
return node}
})(jQuery)