A simple emoticonize filter for AngularJS: translates emoticon codes and smileys to emoji

emoticonize

angular.module('components.filters').filter('emoticonize', function emoticonize() {
    'use strict';

    // Try to stick to the emoticon codes as used by GitHub, Campfire, Basecamp, Flowdock, Slack.. etc.
    // See http://www.emoji-cheat-sheet.com for a list.

    var table = {
        '🔥': [':fire:'],
        '💩': [':shit:', ':hankey:', ':poop:'],
        '🙏': [':pray:'],
        '😉': [':wink:', ';)', ';-)'],
        '😄': [':smile:', ':)', ':-)'],
        '😊': [':blush:'],
        '😺': [':smiley_cat:'],
        '😸': [':smile_cat:'],
        '😖': [':confounded:'],
        '😳': [':flushed:'],
        '😍': [':heart_eyes:'],
        '👽': [':alien:'],
        '👊': [':facepunch:', ':punch:'],
        '👏': [':clap:'],
        '😎': [':sunglasses:', '8)', '8-)'],
        '😆': [':laughing:'],
        '😀': [':grinning:', ':D', ':-D'],
        '😃': [':smiley:', '=D', '=-D'],
        '😁': [':grin:'],
        '😠': ['>:(', '>:-(', ':angry:'],
        '😑': [':|', ':-|', ':expressionless:'],
        '😕': [':confused:', ':/', ':-/'],
        '😛': [':stuck_out_tongue:', ':p', ':-p', ':P', ':-P'],
        '😜': [':stuck_out_tongue_winking_eye:', ';p', ';-p', ';P', ';-P'],
        '😝': [':stuck_out_tongue_closed_eyes:'],
        '😞': [':disappointed:', ':(', ':-('],
        '😒': [':unamused:'],
        '😢': [':\'(', ':\'-(', ':cry:'],
        '😂': [':joy:'],
        '😭': [':sob:'],
        '😓': [':sweat:'],
        '😱': [':scream:', ':o', ':O', ':-o', ':-O'],
        '😰': [':cold_sweat:'],
        '😨': [':fearful:'],
        '😶': [':no_mouth:'],
        '😗': [':kissing:'],
        '😚': [':kissing_closed_eyes:'],
        '😙': [':kissing_smiling_eyes:'],
        '😟': [':worried:'],
        '😇': [':innocent:'],
        '😡': [':rage:'],
        '😷': [':mask:'],
        '👍': ['(y)', '(Y)', ':thumbsup:', ':+1:'],
        '👎': ['(n)', '(N)', ':thumbsdown:', ':-1:'],
        '💛': ['<3', ':yellow_heart:', ':heart:'],
        '💥': [':boom:', ':collision:'],
        '✨': [':sparkles:']
    };

    function _escapeRegExp(string) {
        return string.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, '\\$1');
    }

    function _replaceAll(string, find, replace) {
        var pre = '(^|[\\s\\0])';
        return string.replace(new RegExp(pre+'('+_escapeRegExp(find)+')', 'g'), ' '+replace);
    }

    return function(text, showEmoticons) {
        if (!text || !showEmoticons) {
            return text;
        }

        _.forEach(table, function(emoticons, emoji) {
            _.forEach(emoticons, function(emoticon) {
                text = _replaceAll(text, emoticon, emoji);
            });
        });

        return text;
    };
});