.themes/classic/source/javascripts/twitter.js
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 // JSON-P Twitter fetcher for Octopress
 // (c) Brandon Mathis // MIT Lisence
 
 /* Sky Slavin, Ludopoli. MIT license.  * based on JavaScript Pretty Date * Copyright (c) 2008 John Resig (jquery.com) * Licensed under the MIT license.  */
 function prettyDate(time) {
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   if (navigator.appName === 'Microsoft Internet Explorer') {
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     return "<span>&infin;</span>"; // because IE date parsing isn't fun.
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   }
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   var say = {
     just_now:    " now",
     minute_ago:  "1m",
     minutes_ago: "m",
     hour_ago:    "1h",
     hours_ago:   "h",
     yesterday:   "1d",
     days_ago:    "d",
     weeks_ago:   "w"
   };
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   var current_date = new Date(),
       current_date_time = current_date.getTime(),
       current_date_full = current_date_time + (1 * 60000),
       date = new Date(time),
       diff = ((current_date_full - date.getTime()) / 1000),
       day_diff = Math.floor(diff / 86400);
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   if (isNaN(day_diff) || day_diff < 0) { return "<span>&infin;</span>"; }
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   return day_diff === 0 && (
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     diff < 60 && say.just_now ||
     diff < 120 && say.minute_ago ||
     diff < 3600 && Math.floor(diff / 60) + say.minutes_ago ||
     diff < 7200 && say.hour_ago ||
     diff < 86400 && Math.floor(diff / 3600) + say.hours_ago) ||
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     day_diff === 1 && say.yesterday ||
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     day_diff < 7 && day_diff + say.days_ago ||
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     day_diff > 7 && Math.ceil(day_diff / 7) + say.weeks_ago;
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 }
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 function linkifyTweet(text, url) {
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   // Linkify urls, usernames, hashtags
   text = text.replace(/(https?:\/\/)([\w\-:;?&=+.%#\/]+)/gi, '<a href="$1$2">$2</a>')
     .replace(/(^|\W)@(\w+)/g, '$1<a href="http://twitter.com/$2">@$2</a>')
     .replace(/(^|\W)#(\w+)/g, '$1<a href="http://search.twitter.com/search?q=%23$2">#$2</a>');
 
   // Use twitter's api to replace t.co shortened urls with expanded ones.
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   for (var u in url) {
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     if(url[u].expanded_url != null){
       var shortUrl = new RegExp( url[u].url.replace(/https?:\/\//, ''), 'g');
       text = text.replace(shortUrl, url[u].display_url);
     }
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   }
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   return text
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 }
 
 function showTwitterFeed(tweets, twitter_user) {
   var timeline = document.getElementById('tweets'),
       content = '';
 
   for (var t in tweets) {
     content += '<li>'+'<p>'+'<a href="http://twitter.com/'+twitter_user+'/status/'+tweets[t].id_str+'">'+prettyDate(tweets[t].created_at)+'</a>'+linkifyTweet(tweets[t].text.replace(/\n/g, '<br>'), tweets[t].entities.urls)+'</p>'+'</li>';
   }
   timeline.innerHTML = content;
 }
 
 function getTwitterFeed(user, count, replies) {
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   count = parseInt(count, 10);
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   $.ajax({
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       url: "http://api.twitter.com/1/statuses/user_timeline/" + user + ".json?trim_user=true&count=" + (count + 20) + "&include_entities=1&exclude_replies=" + (replies ? "0" : "1") + "&callback=?"
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     , type: 'jsonp'
     , error: function (err) { $('#tweets li.loading').addClass('error').text("Twitter's busted"); }
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     , success: function(data) { showTwitterFeed(data.slice(0, count), user); }
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   })
 }