js过滤特殊字符输入(可过滤输入,粘贴,拖拽多种情况)

function TextValidate(type) {

var code;

var character;

var Lang = document.getElementById('Lang').value;

var err_msg = "";

if (Lang != "Eng") {

err_msg = "文件夹名稱不能包含下列字符之一:\n \\ / : * ? \" < > | & , ";

}

else {

err_msg = "A Folder Name cannot contain any of the following characters:\n \\ / : * ? \" < > | & ,";

}

if (type == "input") {

code = window.event.keyCode;

}

else if (type == "paste") {

code = window.clipboardData.getData('Text');

}

else if (type == "Drop") {

code = window.event.dataTransfer.getData('Text');

}

else {

code = arguments.callee.caller.arguments[0].which;

}

var character = String.fromCharCode(code);

var txt = new RegExp("[\\*,\\&,\\\\,\\/,\\?,\\|,\\:,\\<,\\>,\"]");

if (type == "input") {

if (txt.test(character)) {

alert(err_msg);

if (document.all) {

window.event.returnValue = false;

}

else {

arguments.callee.caller.arguments[0].preventDefault();

}

}

}

if (type == "paste" || type == "Drop") {

if (txt.test(code)) {

alert(err_msg);

window.event.returnValue = false;

}

}

}