Created
April 27, 2014 06:12
-
-
Save durple/11338751 to your computer and use it in GitHub Desktop.
A better javascript parser for Twitter Entities
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /* | |
| * better-twitter-entities.js | |
| * This function converts a tweet with "entity" metadata | |
| * from plain text to linkified HTML. | |
| * | |
| * See the documentation here: http://dev.twitter.com/pages/tweet_entities | |
| * Basically, add ?include_entities=true to your timeline call | |
| * This is an extension of Wade Simmons' twitter-entities.js gist | |
| * https://gist.github.com/wadey/442463 | |
| * | |
| * Copyright 2014, Deep Kapadia | |
| * Licensed under the MIT license | |
| * http://wades.im/mons | |
| * | |
| * Requires jQuery | |
| */ | |
| function linkify_entities(tweet) { | |
| if (!(tweet.entities)) { | |
| return tweet.text | |
| } | |
| // This is very naive, should find a better way to parse this | |
| var index_map = {} | |
| // Fix retweets | |
| offset = 0 | |
| if ('retweeted_status' in tweet) { | |
| tweet.text = "RT @"+tweet.entities.user_mentions[0].screen_name+": "+tweet.retweeted_status.text; | |
| offset = tweet.entities.user_mentions[0].indices[1]+2 | |
| urls = []; | |
| for (var i=0; i < tweet.retweeted_status.entities.urls.length; i++) { | |
| url = tweet.retweeted_status.entities.urls[i]; | |
| url.indices[0] = url.indices[0]+offset; | |
| url.indices[1] = url.indices[1]+offset; | |
| urls.push(url); | |
| } | |
| tweet.entities.urls = urls | |
| hashtags = []; | |
| for (var i=0; i < tweet.retweeted_status.entities.hashtags.length; i++) { | |
| hashtag = tweet.retweeted_status.entities.hashtags[i]; | |
| hashtag.indices[0] = hashtag.indices[0]+offset; | |
| hashtag.indices[1] = hashtag.indices[1]+offset; | |
| hashtags.push(hashtag); | |
| } | |
| tweet.entities.hashtags = hashtags | |
| user_mentions = [tweet.entities.user_mentions[0]]; // tricky!! | |
| for (var i=0; i < tweet.retweeted_status.entities.user_mentions.length; i++) { | |
| user_mention = tweet.retweeted_status.entities.user_mentions[i]; | |
| user_mention.indices[0] = user_mention.indices[0]+offset; | |
| user_mention.indices[1] = user_mention.indices[1]+offset; | |
| user_mentions.push(user_mention); | |
| } | |
| tweet.entities.user_mentions = user_mentions | |
| } | |
| $.each(tweet.entities.urls, function(i,entry) { | |
| index_map[entry.indices[0]] = [entry.indices[1], function(text) {return "<a target='_blank' href='"+entry.url+"'>"+entry.display_url+"</a>"}] | |
| }) | |
| $.each(tweet.entities.hashtags, function(i,entry) { | |
| index_map[entry.indices[0]] = [entry.indices[1], function(text) {return "<a target='_blank' href='http://twitter.com/search?q="+escape("#"+entry.text)+"'>"+text+"</a>"}] | |
| }) | |
| $.each(tweet.entities.user_mentions, function(i,entry) { | |
| index_map[entry.indices[0]] = [entry.indices[1], function(text) {return "<a target='_blank' title='"+entry.name+"' href='http://twitter.com/"+entry.screen_name+"'>"+text+"</a>"}] | |
| }) | |
| var result = "" | |
| var last_i = 0 | |
| var i = 0 | |
| // iterate through the string looking for matches in the index_map | |
| for (i=0; i < tweet.text.length; ++i) { | |
| var ind = index_map[i] | |
| if (ind) { | |
| var end = ind[0] | |
| var func = ind[1] | |
| if (i > last_i) { | |
| result += tweet.text.substring(last_i, i) | |
| } | |
| result += func(tweet.text.substring(i, end)) | |
| i = end - 1 | |
| last_i = end | |
| } | |
| } | |
| if (i > last_i) { | |
| result += tweet.text.substring(last_i, i) | |
| } | |
| return result | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment