javascript - 如何保存缩进的 MSXML2.DomDocument？ (我认为它使用 MXXMLWriter)

Question

我有一个 MSXML2.DomDocument 实例。

我挥手保存它，缩进。

此代码有效，但不缩进:

var dom = new ActiveXObject("MSXML2.DomDocument");
// fiddle with dom here
dom.save(filename);

我想我可以使用 MXXMLWriter 对象来注入(inject)缩进。

如何？

Answer 1

这应该可以做到。

function saveDomWithIndent(dom, filename) {
    var writer =  new ActiveXObject("MSXML2.MXXMLWriter"),
        reader = new ActiveXObject("MSXML2.SAXXMLReader"),
        fso = new ActiveXObject("Scripting.FileSystemObject"),
        textStream = fso.CreateTextFile(filename, true);
    writer.indent = true;
    writer.omitXMLDeclaration = true;
    reader.contentHandler = writer;
    reader.parse(dom);
    textStream.Write(writer.output);
    textStream.Close();
}

像这样使用它:

var root, node, newnode, 
    dom = new ActiveXObject("MSXML2.DOMDocument.6.0");
dom.async = false;
dom.resolveExternals = false;
dom.load(fullpath);
root = dom.documentElement;
node = root.selectSingleNode("/root/node1");
if (node !== null) {
    newnode = dom.createElement('node2');
    newnode.text = "hello";
    root.appendChild(newnode);
    saveDomWithIndent(dom, fullpath);
}

我不知道如何调整缩进级别。它总是以 tab 缩进。