比如最常见的表情符号:)，如果用图片表示的话就是

这种转换的背后需要一种映射关系，需要由代码完成解析工作，在网页聊天中非常常见，这里贴一下部分核心代码，在

使用ExtJS实现的WebQQ聊天（仿Lync界面）

中使用到

Ext.define('Tulip.messenger.SmileyParser',{
    mixins: {
        observable: 'Ext.util.Observable'
    },singleton: true,re: RegExp("(:\\-?\\)|:\\-?\\}|:\\-?\\]|:\\-\\\\|;\\-?\\\\|:\\-?[Ss]|:\\-?\\||:'\\-?\\||:\\-?[\\(<]|:\\-?[Dd>]|<:o\\)|<[oO]\\)|:\\-?[oO]|:\\-?[pP]|:\\-?\\[|:'\\(|:\\-?@|;\\-?@|:\\-?\\$|:\\-#|:\\-\\*|:\\^\\)|;\\-?\\)|8o\\||8\\-\\)|8\\-\\||\\^o\\)|\\*\\-\\)|\\*\\-?\\\\|\\*\\-?\\||\\+o\\(|\\|\\-\\)|\\([a-pA-Pr-vR-VwWx-zX-Z]\\)|\\([~\\\\*068@#&\\^\\{\\}]\\)|\\(\\|\\|\\)|\\('\\.'\\)|\\*p\\*|\\*s\\*|<3|:8\\)|\\r\\n|\\r|\\n|((http|https):\\/\\/|\\/www|www\\.)[^\\s]*[^\\s?.!(;:'>\\[\\],])"),descriptors: [ // Matrix 8 (Row) * 10 (Column)
        /** 0 ~ 9 **/
        {name:'Smiley',code:':)'},{name:'Open-mouthed smiley',code:':d'},{name:'Winking smiley',code:';)'},{name:'Surprised smiley',code:':-o'},{name:'Smiley with tongue out',code:':p'},{name:'Hot smiley',code:'(h)'},{name:'Angry smiley',code:':@'},{name:'Confused smiley',code:':s'},{name:'Embarrassed smiley',code:':$'},{name:'Sad smiley',code:':('},/** 10 ~ 19 **/
        {name:'Crying face',code:':’('},{name:'Disappointed Smiley',code:':|'},{name:'Storm cloud',code:'(st)'},{name:'Baring teeth smiley',code:':o8'},{name:'Nerd smiley',code:'8-|'},{name:'Sick smiley',code:'+o('},{name:'Party smiley',code:'<:o)'},{name:'Sleepy smiley',code:'(s)'},{name:'Thinking smiley',code:'*-)'},{name:'Don’t tell anyone smiley',code:':-#'},/** 20 ~ 29 **/
        {name:'Secret telling smiley',code:':-*'},{name:'Sarcastic smiley',code:'^o)'},{name:'Eye-rolling smiley',code:'8-)'},{name:'Red heart',code:'(l)'},{name:'Broken heart',code:'(u)'},{name:'Drinks',code:'(d)'},{name:'Beer',code:'(b)'},{name:'Cat face',code:'(@)'},{name:'Dog face',code:'(&)'},{name:'Snail',code:'(sn)'},/** 30 ~ 39 **/
        {name:'Black sheep',code:'(bah)'},{name:'Sleeping half-moon',{name:'Star',code:'(*)'},{name:'Sun',code:'(#)'},{name:'Rainbow',code:'(r)'},{name:'Left hug',code:'({)'},{name:'Right hug',code:'(})'},{name:'Red lips',code:'(k)'},{name:'Red rose',code:'(f)'},{name:'Wilted rose',code:'(w)'},/** 40 ~ 49 **/
        {name:'Clock',code:'(o)'},{name:'Gift Box with bow',code:'(g)'},{name:'Birthday cake',code:'(^)'},{name:'Camera',code:'(p)'},{name:'Lightbulb',code:'(i)'},{name:'Coffee cup',code:'(c)'},{name:'Telephone receiver',code:'(t)'},{name:'Mobile phone',code:'(mp)'},{name:'Auto',code:'(au)'},{name:'Airplane',code:'(ap)'},/** 50 ~ 59 **/
        {name:'Computer',code:'(co)'},{name:'Money',code:'(mo)'},{name:'Filmstrip',code:'(~)'},{name:'Music Note',code:'(8)'},{name:'Pizza',code:'(pi)'},{name:'Soccer',code:'(so)'},{name:'Email icon',code:'(e)'},{name:'Boy',code:'(z)'},{name:'Girl',code:'(x)'},{name:'Island with palm tree',code:'(ip)'},/** 60 ~ 69 **/
        {name:'Umbrella',code:'(um)'},{name:'It’s a deal',code:'(ok)'},{name:'Stop',code:'(!)'},{name:'Confidential/key',code:'(qt)'},{name:'Let’s meet',code:'(s+)'},{name:'I agree',code:'(y)'},{name:'I disagree',code:'(n)'},{name:'Can you talk',code:'(!!)'},{name:'Bye',code:'(bye)'},{name:'Working from home',code:'(@h)'},/** 70 ~ 79 **/
        {name:'Hold on',code:'(w8)'},{name:'Good luck',code:'(gl)'},{name:'Can I call you?',code:'(cic)'},{name:'Online',code:'(ol)'},{name:'Busy',code:'(busy)'},{name:'Do Not Disturb',code:'(dnd)'},{name:'Working on it',code:'(woi)'},{name:'What’s going on?',code:'(!!?)'},{name:'Gotta run',code:'(gtr)'},{name:'Games',code:'(ply)'}
    ],smileyIconMap: {},constructor: function(config) {
        var me = this;
        
        me.mixins.observable.constructor.call(me,config);
        
        me.initSmileyMap();
    },replaceEmoticons: function(text,outText) {
        this.translate(text,outText,false)
    },/*
     * 把代码换成图片；创建超链接
     */
    translate: function(text,link,type) {
        var me = this; //,outText = [];
        for (; 0 < text.length;) {
            var end = false;
            text.replace(me.re,function(matched,g,h,i,j) {
                0 < j && (matched = text.substring(0,j),outText.push(matched));
                switch (g) {
                case "\r\n":
                case "\r":
                case "\n":
                    outText.push("<br>");
                    break;
                default:
                    g.substr(0,4)=="http" || g.substr(0,3)=="www" ? 
                        link ? 
                            (matched = me.createLink(g,outText),outText.push(matched)) : outText.push(g) : g.substr(0,4)=="/www" ? outText.push(g) : (matched = me.createSmiley(g,type),null == matched ? outText.push(g) : outText.push(matched))
                }
                text = text.substring(j + g.length);
                end = true;
                return ''
            });
            end || (outText.push(text),text = '')
        }
    },createLink: function(url,outText) {
        var urlName = url;
        outText.push('<a href="');
        url.substr(0,7)!="http://" && url.substr(0,8)!="https://" && (url = "http://" + url);
        outText.push(url,'" target=_blank>',urlName,'</a>');
    },createSmiley: function(code) {
        var me = this,imgHtml = [],imgName = me.smileyIconMap[code.toLowerCase()];
        if (imgName == null || imgName == undefined) return null;
        imgHtml.push('<img class="face" width="19" height="19" title="Rainbow (r)" alt="(r)" src="/tulip/resources/images/lync/smiley/',imgName,'.gif">');
        
        return imgHtml.join('')
    },initSmileyMap: function() {
        var me = this;
        
        me.smileyIconMap[":)"] = me.smileyIconMap[":-)"] = "1";
        me.smileyIconMap[":d"] = me.smileyIconMap[":-d"] = me.smileyIconMap[":>"] = me.smileyIconMap[":->"] = "2";
        me.smileyIconMap[";)"] = me.smileyIconMap[";-)"] = "3";
        me.smileyIconMap[":o"] = me.smileyIconMap[":-o"] = "4";
        me.smileyIconMap[":p"] = me.smileyIconMap[":-p"] = "5";
        me.smileyIconMap["(h)"] = "6";
        me.smileyIconMap[":@"] = me.smileyIconMap[":-@"] = "7";
        me.smileyIconMap[":$"] = me.smileyIconMap[":-$"] = me.smileyIconMap[":s"] = me.smileyIconMap[":-s"] = "8";
        me.smileyIconMap[":("] = me.smileyIconMap[":-("] = me.smileyIconMap[":<"] = me.smileyIconMap[":-<"] = "9";
        me.smileyIconMap[":'("] = "10";
        me.smileyIconMap[":|"] = me.smileyIconMap[":-|"] = "11";
        me.smileyIconMap["(6)"] = "12";
        me.smileyIconMap["(a)"] = "13";
        me.smileyIconMap["(l)"] = me.smileyIconMap["<3"] = "14";
        me.smileyIconMap["(u)"] = "15";
        me.smileyIconMap["(@)"] = "16";
        me.smileyIconMap["(&)"] = "17";
        me.smileyIconMap["(s)"] = "18";
        me.smileyIconMap["(*)"] = "19";
        me.smileyIconMap["(~)"] = "20";
        me.smileyIconMap["(8)"] = "21";
        me.smileyIconMap["(e)"] = "22";
        me.smileyIconMap["(f)"] = "23";
        me.smileyIconMap["(w)"] = "24";
        me.smileyIconMap["(o)"] = me.smileyIconMap["(0)"] = "25";
        me.smileyIconMap["(k)"] = "26";
        me.smileyIconMap["(g)"] = "27";
        me.smileyIconMap["(^)"] = "28";
        me.smileyIconMap["(p)"] = "29";
        me.smileyIconMap["(i)"] = "30";
        me.smileyIconMap["(c)"] = "31";
        me.smileyIconMap["(t)"] = "32";
        me.smileyIconMap["({)"] = "33";
        me.smileyIconMap["(})"] = "34";
        me.smileyIconMap["(b)"] = "35";
        me.smileyIconMap["(d)"] = "36";
        me.smileyIconMap["(z)"] = "37";
        me.smileyIconMap["(x)"] = "38";
        me.smileyIconMap["(y)"] = "39";
        me.smileyIconMap["(n)"] = "40";
        me.smileyIconMap["(ok)"] = "62";
    }
});