?? func.js
字號(hào):
////////////////////////////////////////////////////////////////////////
// Shared Function Library v2.5.1
// 2007-03-14 12:17:11
// SiC
////////////////////////////////////////////////////////////////////////
//**********************************************************
// Core Functions
//**********************************************************
//----------------------------------------------------------
// Clone an object/array
//----------------------------------------------------------
// Never use the Object.prototype to pollute Object data array
function $clone(obj){
if(typeof obj != "object") return obj;
var newObj;
if(obj instanceof Array){
// Clone Array
newObj = [];
for(var i=0; i<obj.length; i++){
if(typeof obj[i] == "object"){
newObj[i] = $clone(obj[i]);
}else{
newObj[i] = obj[i];
}
}
}else{
// Clone Object
newObj = {};
for(i in obj){
if(typeof obj[i] == "object"){
newObj[i] = $clone(obj[i]);
}else{
newObj[i] = obj[i];
}
}
}
return newObj;
}
//----------------------------------------------------------
// Extend an object if property not exist yet
//----------------------------------------------------------
function $extend(objTarget, objAdd, forceOverride){
var obj = $clone(objTarget); // always new, no pollution
if(typeof obj != "object") return obj;
for(var item in objAdd){
if(obj[item] == undefined || forceOverride) obj[item] = objAdd[item];
}
return obj;
}
//----------------------------------------------------------
// Convert Object to JSON String
//----------------------------------------------------------
function $toJSON(obj, param){
// paramters
var defaultParam = {
'indent': 0,
'indentText': '',
'delimiter': '',
'includeFunction': false
};
param = param ? $extend(param, defaultParam) : defaultParam;
//execute
var indentString = '';
var prevIndentString = '';
if(param['indentText'] != ''){
param['indent']++;
prevIndentString = new Array(param['indent']).join(param['indentText']);
indentString = new Array(param['indent']+1).join(param['indentText']);
}
switch(typeof(obj)){
case "object":
if(obj instanceof Array){
var out = [];
for(var i=0; i<obj.length; i++){
var t = $toJSON(obj[i], param);
if(t){
out.push(indentString + t);
}
}
out = "[" +
param["delimiter"] +
out.join("," + param["delimiter"]) +
param["delimiter"] +
prevIndentString + "]";
}else if(obj instanceof Date){
return "new Date(" +
obj.getFullYear() + "," + obj.getMonth() + "," + obj.getDate() + "," +
obj.getHours() + "," + obj.getMinutes() + "," + obj.getSeconds() + "," + obj.getMilliseconds() +
")";
}else if(obj instanceof Object){
var out = [];
for(label in obj){
var l = $toJSON(label);
var t = $toJSON(obj[label], param);
if(t){
out.push(indentString + l + ": " + t);
}
}
out = "{" +
param["delimiter"] +
out.join("," + param["delimiter"]) +
param["delimiter"] +
prevIndentString + "}";
}
break;
case "string":
var str = obj;
str = str.replace(/\\"/g, '\\\\"');
str = str.replace(/\r/g, '\\r');
str = str.replace(/\t/g, '\\t');
str = str.replace(/\n/g, '\\n');
str = str.replace(/\f/g, '\\f');
str = str.replace(/\"/g, '\\"');
out = '"' + str + '"';
break;
case "number":
out = isFinite(obj) ? String(obj) : 'null';
break;
case "boolean":
out = obj.toString();
break;
case "function":
if(param["includeFunction"]){
out = obj.toString();
}else{
out = '';
}
break;
case "null":
out = "null";
break;
}
return out;
}
//----------------------------------------------------------
// Convert JSON String to Object
//----------------------------------------------------------
function $fromJSON(jsonString){
var obj;
try{
obj = eval("(" + jsonString + ")");
}catch(e){
obj = null;
}
return obj;
}
//----------------------------------------------------------
// Debug functions
//----------------------------------------------------------
function $dump(obj){
alert(
$toJSON(
obj,
{
"indentText": ' ',
"delimiter": "\n"
}
)
);
}
//**********************************************************
// String Functions
//**********************************************************
//----------------------------------------------------------
// Repeat a string
//----------------------------------------------------------
String.prototype.$repeat = function(times){
return new Array(times + 1).join(this);
}
//----------------------------------------------------------
// Trim a string
//----------------------------------------------------------
String.prototype.$trim = function(){
return this.replace(/^[\s\n\t]*|[\s\n\t]*$/g, "");
}
//----------------------------------------------------------
// Get the char font width - detect Unicode Wide char
//----------------------------------------------------------
String.prototype.$charWidthAt = function(index){
// paramters
if(this.length < 1) return 0;
if(!index) index = 0;
// execute
var charCode = this.charCodeAt(index);
// Control Chars
if(charCode < 32){
return 0;
}
// Wide chars
if(
(charCode >= 0x1100 && charCode <= 0x115F)
|| (charCode == 0x2329 || charCode == 0x232A)
|| (charCode >= 0x2E80 && charCode <= 0x303E)
|| (charCode >= 0x3041 && charCode <= 0x4DB5)
|| (charCode >= 0x4E00 && charCode <= 0xA4C6)
|| (charCode >= 0xAC00 && charCode <= 0xDFFF)
|| (charCode >= 0xF900 && charCode <= 0xFAD9)
|| (charCode >= 0xFE10 && charCode <= 0xFE19)
|| (charCode >= 0xFE30 && charCode <= 0xFE6B)
|| (charCode >= 0xFF01 && charCode <= 0xFF60)
|| (charCode >= 0xFFE0 && charCode <= 0xFFEE)
){
return 2;
}
// Normal
return 1;
}
//----------------------------------------------------------
// Cut a string for display - Unicode Wide char supported
//----------------------------------------------------------
String.prototype.$cut = function(length, param){
// paramters
var defaultParam = {
'addPoints': true,
'pointsText': '...',
'reverse': false
};
param = param ? $extend(param, defaultParam) : defaultParam;
// execute
var result = this.valueOf();
var realLength = 0;
if(!param['reverse']){
for(var i=0; (realLength<=length) && (i<this.length); i++){
realLength += this.$charWidthAt(i);
}
result = result.substring(0, i);
}else{
for(var i=this.length-1; (realLength<=length) && (i>-1); i--){
realLength += this.$charWidthAt(i);
}
result = result.substring(result.length - i, result.length);
}
if(param['addPoints'] && result.length != this.length){
if(!param['reverse']){
result += param['pointsText'];
}else{
result = param['pointsText'] + result;
}
}
return result;
}
//----------------------------------------------------------
// HTML Encode
//----------------------------------------------------------
String.prototype.$encodeHTML = function(isTextArea){
// execute
var result = this.valueOf();
result = result.replace(/\&/g, "&");
result = result.replace(/\>/g, ">");
result = result.replace(/\</g, "<");
result = result.replace(/\"/g, """);
result = result.replace(/\'/g, "'");
if(!isTextArea) result = result.replace(/\n/g, "<br/>");
return result;
}
//----------------------------------------------------------
// Remove HTML Tags
//----------------------------------------------------------
String.prototype.$stripHTML = function(){
// execute
var result = this.valueOf();
result = result.replace(/\<[^\<\>]+\>/g,"");
result = result.replace(/ +/g," ");
result = result.replace(/\n+/g,"\n");
return result;
}
//----------------------------------------------------------
// Sanitize HTML - Remove Malicious HTML Codes
//----------------------------------------------------------
String.prototype.$sanitizeHTML = function(arrAllowedTags){
// parameters
if(arrAllowedTags == undefined){
arrAllowedTags = {
"br": {},
"b": {},
"strong": {},
"u": {},
"em": {},
"ul": {},
"ol": {},
"li": {},
"blockquote": {
"style": {invalid: "expression|script"}
},
"p": {
"align": {valid: "left|center|right"},
"style": {invalid: "expression|script"}
},
"span": {
"style": {invalid: "expression|script"}
},
"div": {
"align": {valid: "left|center|right"},
"style": {invalid: "expression|script"}
},
"a": {
"href": {valid: "^(http|https|ftp|mailto)\:"},
"title": {},
"target": {}
},
"img": {
"src": {valid: "^(http|ftp):"},
"alt": {}
}
};
}
// execute
var result = this.valueOf();
result = result.replace(/[\x00-\x1f\x7f]/ig, "");
// Loop through all open tags
var re = /\<([^\/].*?)(\/)?\>/ig;
while( (arrMatch = re.exec(result)) != null){
// Process Tags
var sourceLength = arrMatch[1].length;
var arrParts = arrMatch[1].split(" ");
var targetString = "";
for(var item in arrAllowedTags){
// Check for Allowed Tags
var tagName = arrParts[0];
if(arrAllowedTags[tagName]){
// Allowed Tags
for(var i=1; i<arrParts.length; i++){
// Check for attributes
var pos = arrParts[i].indexOf("=");
if(pos<1){
// Not Found - Remove it
arrParts.splice(i, 1);
i--;
}else{
// Found
var attrName = arrParts[i].substr(0, pos);
var attrValue = arrParts[i].substr(pos+1, arrParts[i].length);
// Remove quotes and encode inside content
if(attrValue.indexOf('"')==0 || attrValue.indexOf("'")==0){
attrValue = attrValue.substr(1, attrValue.length);
attrValue = attrValue.substr(0, attrValue.length-1);
}
//Check For allowed attributes
if(arrAllowedTags[tagName][attrName]){
// Found
// Do Validation
if(arrAllowedTags[tagName][attrName].valid){
var attrRe = new RegExp(arrAllowedTags[tagName][attrName].valid, "ig");
if(!attrRe.test(attrValue)){
// Not Found - Remove it
arrParts.splice(i, 1);
i--;
continue;
}
}
//Check for invalid content
if(arrAllowedTags[tagName][attrName].invalid){
var attrRe = new RegExp(arrAllowedTags[tagName][attrName].invalid, "ig");
if(attrRe.test(attrValue)){
// Not Found - Remove it
arrParts.splice(i, 1);
i--;
continue;
}
}
// Re-assemble the attribute item
attrValue = attrValue.replace(/\"/ig, """);
arrParts[i] = attrName + '="' + attrValue + '"';
}else{
arrParts.splice(i, 1);
i--;
}
}
}
targetString = "<" + arrParts.join(" ") + arrMatch[2] + ">";
}else{
// Forbidden Tags - Remove it
targetString = "";
}
}
// Update String
result = result.replace(arrMatch[0], targetString);
// Set RegExp Position
re.lastIndex += targetString.length - sourceLength;
}
return result;
}
//----------------------------------------------------------
// Sanitize URL - Remove Malicious Codes
//----------------------------------------------------------
String.prototype.$sanitizeURL = function(){
// execute
var result = this.valueOf();
// no special pprotocols
var re = /^(.*?)script:/ig;
if(re.test(result)) return "";
re = /^about:/ig;
if(re.test(result)) return "";
result = result.replace(/</ig, "%3C");
result = result.replace(/>/ig, "%3E");
result = result.replace(/ /ig, "%20");
return result;
}
//----------------------------------------------------------
// Safe string parameter value for tag attributes
//----------------------------------------------------------
String.prototype.$safeQuote = function(bSingleQuote){
// execute
var result = this.valueOf();
if(bSingleQuote){
result = result.replace(/\'/ig, "\\\'");
}else{
result = result.replace(/\"/ig, "\\\"");
}
return result;
}
//**********************************************************
// Datetime Functions
//**********************************************************
$Date = {};
$Date.names = {};
$Date.names.weekday = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
$Date.names.weekdayAbbr = ["Sun", "Mon", "Tue", "Wedy", "Thu", "Fri", "Sat"];
$Date.names.month = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
$Date.names.monthAbbr = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
$Date.names.ampm = ["AM", "PM"];
$Date.names.ampmAbbr = ["A", "P"];
//----------------------------------------------------------
// Parse a yyy-mm-dd hh:ii:ss format datetime string
//----------------------------------------------------------
$Date.parse = function(strDateTime){
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