前端翻译国际化

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<script>
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    var langPackage = {
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        "主题": "Title",
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        "下一页": "NextPage",
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        "末页": "LastPage",
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        "首页": " FirstPage ",
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        "上一页": " PreviousPage ",
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        "待办工作": "MyTasks",
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        "中": "Middle",
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        "每页": " EachPage ",
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        "条": " Record ",
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        "共": " Total ",
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        "页": " Page ",
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        "第": " Current ",
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        "工作主题": " ProcTitle"
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    };
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    /*
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            主调函数
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            在 Jquery的 .read方法里调用 ReplaceChildChs($(document));
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            或者页面的最后调用
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            ReplaceChildChs($(document));
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        */
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    function ReplaceChildChs(nodeObj) {
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        // if($("#hdfUseLang").val()=="CN")return;
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        if (nodeObj.children().length > 0) {
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            nodeObj.children().each(function() {
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                ReplaceChildChs($(this));
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                //            if ($(this)[0].nodeName.toUpperCase() == "TD"){
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                FindChsAndReplaceIt($(this));
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                //            }
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            });
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        } else {
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            FindChsAndReplaceIt(nodeObj);
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        }
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    }
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    // 直接替换html 的一种设想，但总是报错
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    function JustReplaceChsDom(nodeObj) {
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        var pat = new RegExp("[\u4e00-\u9fa5]+", "g"); // 匹配中文的正则表达式
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        var str = $(nodeObj).html();
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        while ((arr = pat.exec(str)) != null) {
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            if (langPackage[arr[0]]) {
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                str = str.replace(arr[0], langPackage[arr[0]]);
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            }
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        }
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        $(nodeObj).html(str);
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    }
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    function FindChsAndReplaceIt(nodeObj) {
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        var pat = new RegExp("[\u4e00-\u9fa5]+", "g");
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        if ((nodeObj.text() || nodeObj.val() || nodeObj.attr("title")) &&
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            (pat.exec(nodeObj.text()) || pat.exec(nodeObj.val()) || pat.exec(nodeObj.attr("title")))) {
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            var str = ""
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            if (nodeObj.text()) {
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                str = nodeObj.text();
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                ReplaceValue(str, nodeObj, "text");
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            }
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            if (nodeObj.val()) {
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                str = nodeObj.val();
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                ReplaceValue(str, nodeObj, "val");
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            }
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            if (nodeObj.attr("title")) {
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                str = nodeObj.attr("title");
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                ReplaceValue(str, nodeObj, "title");
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            }
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        }
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    }
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    function ReplaceValue(str, nodeObj, attrType) {
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        var arr;
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        var pat = new RegExp("[\u4e00-\u9fa5]+", "g");
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        while ((arr = pat.exec(str)) != null) {
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            if (langPackage[arr[0]]) {
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                str = str.replace(arr[0], langPackage[arr[0]]);
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                if (attrType == "text") {
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                    nodeObj.text(str);
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                } else if (attrType == "val") {
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                    nodeObj.val(str);
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                } else if (attrType == "title") {
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                    nodeObj.attr("title", str);
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                }
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            }
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        }
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    }
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    ReplaceChildChs($(document));
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</script>