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mass_merge.js
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mass_merge.js
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!function(global, DOC) {
var $$ = global.$; //保存已有同名变量
var rmakeid = /(#.+|\W)/g; //用于处理掉href中的hash与所有特殊符号,生成长命名空间
var NsKey = DOC.URL.replace(rmakeid, ""); //长命名空间(字符串)
var NsVal = global[NsKey]; //长命名空间(mass对象)
var W3C = DOC.dispatchEvent; //IE9开始支持W3C的事件模型与getComputedStyle取样式值
var html = DOC.documentElement; //HTML元素
var head = DOC.head || DOC.getElementsByTagName("head")[0]; //HEAD元素
var loadings = []; //正在加载中的模块列表
var factorys = []; //储存需要绑定ID与factory对应关系的模块(标准浏览器下,先parse的script节点会先onload)
var mass = 1; //当前框架的版本号
var postfix = ""; //用于强制别名
var all = "mass,lang,class,flow,data,support,query,node,attr,css,event,ajax,fx";
var moduleClass = "mass" + (new Date - 0);
var hasOwn = Object.prototype.hasOwnProperty;
var class2type = {
"[object HTMLDocument]": "Document",
"[object HTMLCollection]": "NodeList",
"[object StaticNodeList]": "NodeList",
"[object DOMWindow]": "Window",
"[object global]": "Window",
"null": "Null",
"NaN": "NaN",
"undefined": "Undefined"
};
var serialize = class2type.toString,
basepath, kernel;
function $(expr, context) { //新版本的基石
if (typeof expr === "function" && expr.call) { //注意在safari下,typeof nodeList的类型为function,因此必须使用$.type
return $.require(all + ",ready", expr);
}
if (!$.fn)
$.error("必须加载node模块");
return new $.fn.init(expr, context);
}
//多版本共存
if (typeof NsVal !== "function") {
NsVal = $; //公用命名空间对象
NsVal.uuid = 1;
}
if (NsVal.mass !== mass) {
NsVal[mass] = $; //保存当前版本的命名空间对象到公用命名空间对象上
if (NsVal.mass || ($$ && $$.mass == null)) {
postfix = (mass + "").replace(/\D/g, ""); //是否强制使用多库共存
}
} else {
return;
}
function mix(receiver, supplier) {
var args = [].slice.call(arguments),
i = 1,
key, //如果最后参数是布尔,判定是否覆写同名属性
ride = typeof args[args.length - 1] === "boolean" ? args.pop() : true;
if (args.length === 1) { //处理$.mix(hash)的情形
receiver = !this.window ? this : {};
i = 0;
}
while ((supplier = args[i++])) {
for (key in supplier) { //允许对象糅杂,用户保证都是对象
if (hasOwn.call(supplier, key) && (ride || !(key in receiver))) {
receiver[key] = supplier[key];
}
}
}
return receiver;
}
//为此版本的命名空间对象添加成员
mix($, {
html: html,
head: head,
mix: mix,
rword: /[^, ]+/g,
rmapper: /(\w+)_(\w+)/g,
mass: mass,
hasOwn: function(obj, key) {
return hasOwn.call(obj, key);
},
//大家都爱用类库的名字储存版本号,我也跟风了
"@bind": W3C ? "addEventListener" : "attachEvent",
slice: W3C ? function(nodes, start, end) {
return factorys.slice.call(nodes, start, end);
} : function(nodes, start, end) {
var ret = [],
n = nodes.length;
if (end === void 0 || typeof end === "number" && isFinite(end)) {
start = parseInt(start, 10) || 0;
end = end == void 0 ? n : parseInt(end, 10);
if (start < 0) {
start += n;
}
if (end > n) {
end = n;
}
if (end < 0) {
end += n;
}
for (var i = start; i < end; ++i) {
ret[i - start] = nodes[i];
}
}
return ret;
},
getUid: W3C ? function(obj) { //IE9+,标准浏览器
return obj.uniqueNumber || (obj.uniqueNumber = NsVal.uuid++);
} : function(obj) {
if (obj.nodeType !== 1) { //如果是普通对象,文档对象,window对象
return obj.uniqueNumber || (obj.uniqueNumber = NsVal.uuid++);
} //注:旧式IE的XML元素不能通过el.xxx = yyy 设置自定义属性
var uid = obj.getAttribute("uniqueNumber");
if (!uid) {
uid = NsVal.uuid++;
obj.setAttribute("uniqueNumber", uid);
}
return +uid; //确保返回数字
},
bind: W3C ? function(el, type, fn, phase) {
el.addEventListener(type, fn, !!phase);
return fn;
} : function(el, type, fn) {
el.attachEvent && el.attachEvent("on" + type, fn);
return fn;
},
unbind: W3C ? function(el, type, fn, phase) {
el.removeEventListener(type, fn || $.noop, !!phase);
} : function(el, type, fn) {
if (el.detachEvent) {
el.detachEvent("on" + type, fn || $.noop);
}
},
type: function(obj, str) {
var result = class2type[(obj == null || obj !== obj) ? obj : serialize.call(obj)] || obj.nodeName || "#";
if (result.charAt(0) === "#") { //兼容旧式浏览器与处理个别情况,如window.opera
//利用IE678 window == document为true,document == window竟然为false的神奇特性
if (obj == obj.document && obj.document != obj) {
result = "Window"; //返回构造器名字
} else if (obj.nodeType === 9) {
result = "Document"; //返回构造器名字
} else if (obj.callee) {
result = "Arguments"; //返回构造器名字
} else if (isFinite(obj.length) && obj.item) {
result = "NodeList"; //处理节点集合
} else {
result = serialize.call(obj).slice(8, -1);
}
}
if (str) {
return str === result;
}
return result;
},
log: function(str, page, level) {
for (var i = 1, show = true; i < arguments.length; i++) {
level = arguments[i];
if (typeof level === "number") {
show = level <= $.config.level;
} else if (level === true) {
page = true;
}
}
if (show) {
if (page === true) {
$.require("ready", function() {
var div = DOC.createElement("pre");
div.className = "mass_sys_log";
div.innerHTML = str + ""; //确保为字符串
DOC.body.appendChild(div);
});
} else if (window.opera) {
opera.postError(str)
//http://www.cnblogs.com/zoho/archive/2013/01/31/2886651.html
//http://www.dotblogs.com.tw/littlebtc/archive/2009/04/06/ie8-ajax-2-debug.aspx
} else if (global.console && console.info && console.log) {
console.log(str);
}
}
return str;
},
oneObject: function(array, val) {
if (typeof array === "string") {
array = array.match($.rword) || [];
}
var result = {},
value = val !== void 0 ? val : 1;
for (var i = 0, n = array.length; i < n; i++) {
result[array[i]] = value;
}
return result;
},
config: function(settings) {
for (var p in settings) {
if (!hasOwn.call(settings, p))
continue;
var val = settings[p];
if (typeof kernel.plugin[p] === "function") {
kernel.plugin[p](val);
} else {
kernel[p] = val;
}
}
return this;
},
exports: function(name) {
global.$ = $$; //多库共存 2012.2.1之前为$$ &&(global.$ = $$)
name = name || $.config.nick; //取得当前简短的命名空间
$.config.nick = name;
global[NsKey] = NsVal;
return global[name] = this;
},
//一个空函数
noop: function() {
},
error: function(str, e) {
throw new (e || Error)(str);
}
});
(function() {
var cur = getCurrentScript(true);
if (!cur) {//处理window safari的Error没有stack的问题
cur = $.slice(document.scripts).pop().src;
}
var url = cur.replace(/[?#].*/, "");
kernel = $.config;
kernel.plugin = {};
kernel.alias = {};
basepath = kernel.base = url.slice(0, url.lastIndexOf("/") + 1);
var scripts = DOC.getElementsByTagName("script");
for (var i = 0, el; el = scripts[i++]; ) {
if (el.src === cur) {
kernel.nick = el.getAttribute("nick") || "$";
break;
}
}
kernel.level = 9;
})();
kernel.plugin["alias"] = function(val) {
var map = kernel.alias;
for (var c in val) {
if (hasOwn.call(val, c)) {
var prevValue = map[c];
var currValue = val[c];
if (prevValue) {
$.error("注意" + c + "出经重写过");
}
map[c] = currValue;
}
}
};
"Boolean,Number,String,Function,Array,Date,RegExp,Window,Document,Arguments,NodeList".replace($.rword, function(name) {
class2type["[object " + name + "]"] = name;
});
//============================加载系统===========================
var modules = $.modules = {
ready: {
exports: $
},
mass: {
state: 2,
exports: $
}
};
function getCurrentScript(base) {
// 参考 https://github.com/samyk/jiagra/blob/master/jiagra.js
var stack;
try {
a.b.c(); //强制报错,以便捕获e.stack
} catch (e) { //safari的错误对象只有line,sourceId,sourceURL
stack = e.stack;
if (!stack && window.opera) {
//opera 9没有e.stack,但有e.Backtrace,但不能直接取得,需要对e对象转字符串进行抽取
stack = (String(e).match(/of linked script \S+/g) || []).join(" ");
}
}
if (stack) {
stack = stack.split(/[@ ]/g).pop(); //取得最后一行,最后一个空格或@之后的部分
stack = stack[0] === "(" ? stack.slice(1, -1) : stack.replace(/\s/, ""); //去掉换行符
return stack.replace(/(:\d+)?:\d+$/i, ""); //去掉行号与或许存在的出错字符起始位置
}
var nodes = (base ? document : head).getElementsByTagName("script"); //只在head标签中寻找
for (var i = nodes.length, node; node = nodes[--i]; ) {
if ((base || node.className === moduleClass) && node.readyState === "interactive") {
return node.className = node.src;
}
}
}
function checkCycle(deps, nick) {
//检测是否存在循环依赖
for (var id in deps) {
if (deps[id] === "司徒正美" && modules[id].state !== 2 && (id === nick || checkCycle(modules[id].deps, nick))) {
return true;
}
}
}
function checkDeps() {
//检测此JS模块的依赖是否都已安装完毕,是则安装自身
loop: for (var i = loadings.length, id; id = loadings[--i]; ) {
var obj = modules[id],
deps = obj.deps;
for (var key in deps) {
if (hasOwn.call(deps, key) && modules[key].state !== 2) {
continue loop;
}
}
//如果deps是空对象或者其依赖的模块的状态都是2
if (obj.state !== 2) {
loadings.splice(i, 1); //必须先移除再安装,防止在IE下DOM树建完后手动刷新页面,会多次执行它
fireFactory(obj.id, obj.args, obj.factory);
checkDeps();//如果成功,则再执行一次,以防有些模块就差本模块没有安装好
}
}
}
function checkFail(node, onError, fuckIE) {
var id = node.src;//检测是否死链
node.onload = node.onreadystatechange = node.onerror = null;
if (onError || (fuckIE && !modules[id].state)) {
setTimeout(function() {
head.removeChild(node);
});
$.log("加载 " + id + " 失败" + onError + " " + (!modules[id].state), 7);
} else {
return true;
}
}
function loadJSCSS(url, parent, ret, shim) {
//1. 特别处理mass|ready标识符
if (/^(mass|ready)$/.test(url)) {
return url;
}
//2. 转化为完整路径
if ($.config.alias[url]) {//别名机制
ret = $.config.alias[url];
if (typeof ret === "object") {
shim = ret;
ret = ret.src;
}
} else {
if (/^(\w+)(\d)?:.*/.test(url)) { //如果本来就是完整路径
ret = url;
} else {
parent = parent.substr(0, parent.lastIndexOf('/'));
var tmp = url.charAt(0);
if (tmp !== "." && tmp !== "/") { //相对于根路径
ret = basepath + url;
} else if (url.slice(0, 2) === "./") { //相对于兄弟路径
ret = parent + url.slice(1);
} else if (url.slice(0, 2) === "..") { //相对于父路径
var arr = parent.replace(/\/$/, "").split("/");
tmp = url.replace(/\.\.\//g, function() {
arr.pop();
return "";
});
ret = arr.join("/") + "/" + tmp;
} else if (tmp === "/") {
ret = parent + url;//相对于兄弟路径
} else {
$.error("不符合模块标识规则: " + url);
}
}
}
var src = ret.replace(/[?#].*/, ""),
ext;
if (/\.(css|js)$/.test(src)) { // 处理"http://113.93.55.202/mass.draggable"的情况
ext = RegExp.$1;
}
if (!ext) { //如果没有后缀名,加上后缀名
src += ".js";
ext = "js";
}
//3. 开始加载JS或CSS
if (ext === "js") {
if (!modules[src]) { //如果之前没有加载过
modules[src] = {
id: src,
parent: parent,
exports: {}
};
if (shim) {//shim机制
require(shim.deps || "", function() {
loadJS(src, function() {
modules[src].state = 2;
modules[src].exports = typeof shim.exports === "function" ?
shim.exports() : window[shim.exports];
checkDeps();
});
});
} else {
loadJS(src);
}
}
return src;
} else {
loadCSS(src);
}
}
function loadJS(url, callback) {
//通过script节点加载目标模块
var node = DOC.createElement("script");
node.className = moduleClass; //让getCurrentScript只处理类名为moduleClass的script节点
node[W3C ? "onload" : "onreadystatechange"] = function() {
if (W3C || /loaded|complete/i.test(node.readyState)) {
//mass Framework会在_checkFail把它上面的回调清掉,尽可能释放回存,尽管DOM0事件写法在IE6下GC无望
var factory = factorys.pop();
factory && factory.delay(node.src);
if (callback) {
callback();
}
if (checkFail(node, false, !W3C)) {
$.log("已成功加载 " + node.src, 7);
}
}
};
node.onerror = function() {
checkFail(node, true);
};
node.src = url; //插入到head的第一个节点前,防止IE6下head标签没闭合前使用appendChild抛错
head.insertBefore(node, head.firstChild); //chrome下第二个参数不能为null
$.log("正准备加载 " + node.src, 7); //更重要的是IE6下可以收窄getCurrentScript的寻找范围
}
function loadCSS(url) {
//通过link节点加载模块需要的CSS文件
var id = url.replace(rmakeid, "");
if (!DOC.getElementById(id)) {
var node = DOC.createElement("link");
node.rel = "stylesheet";
node.href = url;
node.id = id;
head.insertBefore(node, head.firstChild);
}
}
window.require = $.require = function(list, factory, parent) {
// 用于检测它的依赖是否都为2
var deps = {},
// 用于保存依赖模块的返回值
args = [],
// 需要安装的模块数
dn = 0,
// 已安装完的模块数
cn = 0,
id = parent || "callback" + setTimeout("1");
parent = parent || basepath;
String(list).replace($.rword, function(el) {
var url = loadJSCSS(el, parent)
if (url) {
dn++;
if (modules[url] && modules[url].state === 2) {
cn++;
}
if (!deps[url]) {
args.push(url);
deps[url] = "司徒正美"; //去重
}
}
});
modules[id] = {//创建一个对象,记录模块的加载情况与其他信息
id: id,
factory: factory,
deps: deps,
args: args,
state: 1
};
if (dn === cn) { //如果需要安装的等于已安装好的
fireFactory(id, args, factory); //安装到框架中
} else {
//放到检测列队中,等待checkDeps处理
loadings.unshift(id);
}
checkDeps();
};
require.config = kernel;
window.define = $.define = function(id, deps, factory) { //模块名,依赖列表,模块本身
var args = $.slice(arguments);
if (typeof id === "string") {
var _id = args.shift();
}
if (typeof args[0] === "boolean") { //用于文件合并, 在标准浏览器中跳过补丁模块
if (args[0]) {
return;
}
args.shift();
}
if (typeof args[0] === "function") {
args.unshift([]);
} //上线合并后能直接得到模块ID,否则寻找当前正在解析中的script节点的src作为模块ID
//现在除了safari外,我们都能直接通过getCurrentScript一步到位得到当前执行的script节点,
//safari可通过onload+delay闭包组合解决
id = modules[id] && modules[id].state >= 1 ? _id : getCurrentScript();
factory = args[1];
factory.id = _id; //用于调试
factory.delay = function(id) {
args.push(id);
var isCycle = true;
try {
isCycle = checkCycle(modules[id].deps, id);
} catch (e) {
}
if (isCycle) {
$.error(id + "模块与之前的某些模块存在循环依赖");
}
delete factory.delay; //释放内存
require.apply(null, args); //0,1,2 --> 1,2,0
};
if (id) {
factory.delay(id, args);
} else { //先进先出
factorys.push(factory);
}
};
$.define.amd = modules;
function fireFactory(id, deps, factory) {
for (var i = 0, array = [], d; d = deps[i++]; ) {
array.push(modules[d].exports);
}
var module = Object(modules[id]),
ret = factory.apply(global, array);
module.state = 2;
if (ret !== void 0) {
modules[id].exports = ret;
}
return ret;
}
all.replace($.rword, function(a) {
$.config.alias["$" + a] = basepath + a + ".js";
});
//============================domReady机制===========================
var readyFn, ready = W3C ? "DOMContentLoaded" : "readystatechange";
function fireReady() {
modules.ready.state = 2;
checkDeps();
if (readyFn) {
$.unbind(DOC, ready, readyFn);
}
fireReady = $.noop; //隋性函数,防止IE9二次调用_checkDeps
}
function doScrollCheck() {
try { //IE下通过doScrollCheck检测DOM树是否建完
html.doScroll("left");
fireReady();
} catch (e) {
setTimeout(doScrollCheck);
}
}
;
//在firefox3.6之前,不存在readyState属性
//http://www.cnblogs.com/rubylouvre/archive/2012/12/18/2822912.html
if (!DOC.readyState) {
var readyState = DOC.readyState = "loading";
}
if (DOC.readyState === "complete") {
fireReady(); //如果在domReady之外加载
} else {
$.bind(DOC, ready, readyFn = function() {
if (W3C || DOC.readyState === "complete") {
fireReady();
if (readyState) { //IE下不能改写DOC.readyState
DOC.readyState = "complete";
}
}
});
if (html.doScroll) {
try { //如果跨域会报错,那时肯定证明是存在两个窗口
if (self.eval === parent.eval) {
doScrollCheck();
}
} catch (e) {
doScrollCheck();
}
}
}
//============================HTML5新标签支持===========================
//IE6789必须以硬编码形式把mass.js写在页面才生效
global.VBArray && ("abbr,article,aside,audio,base,bdi,canvas,data,datalist,details,figcaption,figure,footer," + "header,hgroup,m,mark,meter,nav,output,progress,section,summary,time,video").replace($.rword, function(tag) {
DOC.createElement(tag);
});
//============================HTML5无缝刷新页面支持======================
//https://developer.mozilla.org/en/DOM/window.onpopstate
$.bind(global, "popstate", function() {
NsKey = DOC.URL.replace(rmakeid, "");
$.exports();
});
$.exports($.config.nick + postfix); //防止不同版本的命名空间冲突
//============================合并核心模块支持===========================
var define = function(a) {
var array = [basepath + a + ".js"];//重写模块名;basepath变量为mass.js的一个变量
for (var i = 1; i < arguments.length; i++) {
var el = arguments[i];
if (typeof el !== "string") {//已经存在模块名了
array.push(el);
}
}
return $.define.apply($, array);
}
"lang,class,flow,data,query,support,css,attr,node,event,fx,ajax".replace($.rword, function(a) {
modules[basepath + a + ".js"] = {
state: 1
}
});
//=========================================
// 语言扩展模块v6 by 司徒正美
//=========================================
define("lang", /native code/.test(Array.isArray) ? ["mass"] : ["lang_fix"], function($) {
var global = this,
seval = global.execScript ? "execScript" : "eval",
rformat = /\\?\#{([^{}]+)\}/gm,
sopen = (global.open + '').replace(/open/g, ""),
defineProperty = Object.defineProperty;
function method(obj, name, val) {
if (!obj[name]) {
defineProperty(obj, name, {
configurable: true,
enumerable: false,
writable: true,
value: val
});
}
}
//IE8的Object.defineProperty只对DOM有效
try {
defineProperty({}, 'a', {
get: function() {
}
});
$.supportDefineProperty = true;
} catch (e) {
method = function(obj, name, method) {
if (!obj[name]) {
obj[name] = method;
}
};
}
function methods(obj, map) {
for (var name in map) {
method(obj, name, map[name]);
}
}
var tools = {
isPlainObject: function(obj) {
if (!$.type(obj, "Object") || $.isNative("reload", obj)) {
return false;
}
try { //不存在hasOwnProperty方法的对象肯定是IE的BOM对象或DOM对象
for (var key in obj) //只有一个方法是来自其原型立即返回flase
if (!Object.prototype.hasOwnProperty.call(obj, key)) { //不能用obj.hasOwnProperty自己查自己
return false;
}
} catch (e) {
return false;
}
return true;
},
isNative: function(method, obj) {
var m = obj ? obj[method] : false,
r = new RegExp(method, "g");
return !!(m && typeof m != "string" && sopen === (m + "").replace(r, ""));
},
isEmptyObject: function(obj) {
for (var i in obj) {
return false;
}
return true;
},
isArrayLike: function(obj, includeString) { //是否包含字符串
var type = $.type(obj);
if (type === "Array" || type === "Arguments" || type === "NodeList" || includeString && type === "String") {
return true;
}
if (type === "Object") {
var i = obj.length;
return (i >= 0) && (i % 1 === 0) && obj.hasOwnProperty("0"); //非负整数
}
return false;
},
isFunction: function(fn) {//为了性能起见,没有走$.type方法
return "[object Function]" === tools.toString.call(fn)
},
isArray: Array.isArray, //Array.isArray已在lang_fix中被修复
each: function(obj, fn, scope, map) {
var value, i = 0,
isArray = $.isArrayLike(obj),
ret = [];
if (isArray) {
for (var n = obj.length; i < n; i++) {
value = fn.call(scope || obj[i], i, obj[i]);
if (map) {
if (value != null) {
ret[ ret.length ] = value;
}
} else if (value === false) {
break;
}
}
} else {
for (i in obj) {
value = fn.call(scope || obj[i], i, obj[i]);
if (map) {
if (value != null) {
ret[ ret.length ] = value;
}
} else if (value === false) {
break;
}
}
}
return map ? ret : obj;
},
map: function(obj, fn, scope) {
return $.each(obj, fn, scope, true);
},
filter: function(obj, fn, scope) {
for (var i = 0, n = obj.length, ret = []; i < n; i++) {
var val = fn.call(scope || obj[i], obj[i], i);
if (!!val) {
ret[ret.length] = obj[i];
}
}
return ret;
},
format: function(str, object) {
var array = $.slice(arguments, 1);
return str.replace(rformat, function(match, name) {
if (match.charAt(0) === "\\")
return match.slice(1);
var index = Number(name);
if (index >= 0)
return array[index];
if (object && object[name] !== void 0)
return object[name];
return '';
});
},
range: function(start, end, step) {
step || (step = 1);
if (end == null) {
end = start || 0;
start = 0;
}
var index = -1,
length = Math.max(0, Math.ceil((end - start) / step)),
result = Array(length);
while (++index < length) {
result[index] = start;
start += step;
}
return result;
},
quote: String.quote || JSON.stringify,
dump: function(obj) {
var space = $.isNative("parse", window.JSON) ? 4 : "\r\t", cache = [],
text = JSON.stringify(obj, function(key, value) {
if (typeof value === 'object' && value !== null) {//防止环引用
if (cache.indexOf(value) !== -1) {
return;
}
cache.push(value);
}
return typeof value === "function" ? value + "" : value;
}, space);
cache = [];//GC回收
return text;
},
parseJS: function(code) {
//IE中,global.eval()和eval()一样只在当前作用域生效。
//Firefox,Safari,Opera中,直接调用eval()为当前作用域,global.eval()调用为全局作用域。
//window.execScript 在IE下一些限制条件
//http://www.ascadnetworks.com/Guides-and-Tips/IE-error-%2522Could-not-complete-the-operation-due-to-error-80020101%2522
if (code && /\S/.test(code)) {
try {
global[seval](code);
} catch (e) {
}
}
},
parseJSON: function(data) {
try {
return global.JSON.parse(data.trim());
} catch (e) {
$.error("Invalid JSON: " + data, TypeError);
}
},
parseXML: function(data, xml, tmp) {
try {
var mode = document.documentMode
if (global.DOMParser && (!mode || mode > 8)) { // Standard
tmp = new DOMParser();
xml = tmp.parseFromString(data, "text/xml");
} else { // IE
xml = new ActiveXObject("Microsoft.XMLDOM"); //"Microsoft.XMLDOM"
xml.async = "false";
xml.loadXML(data);
}
} catch (e) {
xml = undefined;
}
if (!xml || !xml.documentElement || xml.getElementsByTagName("parsererror").length) {
$.error("Invalid XML: " + data, TypeError);
}
return xml;
}
}
$.mix(tools, false);
methods(String.prototype, {
repeat: function(n) {
//将字符串重复n遍
var result = "",
target = this;
while (n > 0) {
if (n & 1)
result += target;
target += target;
n >>= 1;
}
return result;
},
startsWith: function(str) {
//判定是否以给定字符串开头
return this.indexOf(str) === 0;
},
endsWith: function(str) {
//判定是否以给定字符串结尾
return this.lastIndexOf(str) === this.length - str.length;
},
contains: function(s, position) {
//判断一个字符串是否包含另一个字符
return ''.indexOf.call(this, s, position >> 0) !== -1;
}
});
//构建四个工具方法:$.String, $.Array, $.Number, $.Object
"String,Array,Number,Object".replace($.rword, function(Type) {
$[Type] = function(pack) {
var isNative = typeof pack == "string",
//取得方法名
methods = isNative ? pack.match($.rword) : Object.keys(pack);
methods.forEach(function(method) {
$[Type][method] = isNative ?
function(obj) {
return obj[method].apply(obj, $.slice(arguments, 1));
} : pack[method];
});
}
});
$.String({
byteLen: function(target) {
return target.replace(/[^\x00-\xff]/g, 'ci').length;
},
truncate: function(target, length, truncation) {
//length,新字符串长度,truncation,新字符串的结尾的字段,返回新字符串
length = length || 30;
truncation = truncation === void(0) ? "..." : truncation;
return target.length > length ? target.slice(0, length - truncation.length) + truncation : String(target);
},
camelize: function(target) {
//转换为驼峰风格
if (target.indexOf("-") < 0 && target.indexOf("_") < 0) {
return target; //提前判断,提高getStyle等的效率
}
return target.replace(/[-_][^-_]/g, function(match) {
return match.charAt(1).toUpperCase();
});
},
underscored: function(target) {
//转换为下划线风格
return target.replace(/([a-z\d])([A-Z]+)/g, "$1_$2").replace(/\-/g, "_").toLowerCase();
},
capitalize: function(target) {
//首字母大写
return target.charAt(0).toUpperCase() + target.substring(1).toLowerCase();
},
stripTags: function(target) {
//移除字符串中的html标签,但这方法有缺陷,如里面有script标签,会把这些不该显示出来的脚本也显示出来了
return target.replace(/<[^>]+>/g, "");
},
stripScripts: function(target) {
//移除字符串中所有的 script 标签。弥补stripTags方法的缺陷。此方法应在stripTags之前调用。
return target.replace(/<script[^>]*>([\S\s]*?)<\/script>/img, '');
},
escapeHTML: function(target) {
//将字符串经过 html 转义得到适合在页面中显示的内容, 例如替换 < 为 <
return target.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """).replace(/'/g, "'");
},
unescapeHTML: function(target) {
//还原为可被文档解析的HTML标签
return target.replace(/"/g, '"').replace(/</g, "<").replace(/>/g, ">").replace(/&/g, "&") //处理转义的中文和实体字符
.replace(/&#([\d]+);/g, function($0, $1) {
return String.fromCharCode(parseInt($1, 10));
});
},
escapeRegExp: function(target) {
//http://stevenlevithan.com/regex/xregexp/
//将字符串安全格式化为正则表达式的源码
return(target + "").replace(/([-.*+?^${}()|[\]\/\\])/g, "\\$1");
},
pad: function(target, n, filling, right, radix) {
//http://www.cnblogs.com/rubylouvre/archive/2010/02/09/1666165.html
//在左边补上一些字符,默认为0
var num = target.toString(radix || 10);
filling = filling || "0";
while (num.length < n) {
if (!right) {
num = filling + num;
} else {
num += filling;
}
}
return num;
}
});
//字符串的原生原型方法
$.String("charAt,charCodeAt,concat,indexOf,lastIndexOf,localeCompare,match," + "contains,endsWith,startsWith,repeat," + //es6
"replace,search,slice,split,substring,toLowerCase,toLocaleLowerCase,toUpperCase,trim,toJSON")
$.Array({
contains: function(target, item) {
//判定数组是否包含指定目标。
return !!~target.indexOf(item);
},
removeAt: function(target, index) {
//移除数组中指定位置的元素,返回布尔表示成功与否。
return !!target.splice(index, 1).length
},
remove: function(target, item) {
//移除数组中第一个匹配传参的那个元素,返回布尔表示成功与否。
var index = target.indexOf(item);
if (~index)
return $.Array.removeAt(target, index);
return false;
},
shuffle: function(target) {
//对数组进行洗牌。若不想影响原数组,可以先拷贝一份出来操作。
var ret = [],
i = target.length,
n;
target = target.slice(0);
while (--i >= 0) {
n = Math.floor(Math.random() * i);
ret[ret.length] = target[n];
target[n] = target[i];
}
return ret;
},
random: function(target) {
//从数组中随机抽选一个元素出来。
return $.Array.shuffle(target.concat())[0];
},
flatten: function(target) {
//对数组进行平坦化处理,返回一个一维的新数组。
var result = [],
self = $.Array.flatten;
target.forEach(function(item) {
if (Array.isArray(item)) {
result = result.concat(self(item));