当元素为空时，保存将返回换行符添加到 XML [英] Save adds return linebreaks to XML when elements are blank

问题描述

我正在加载一个 XML 文档，其中有一些没有内部文本的标签.

I'm loading a XML Document that has some tags that have no innertext.

如果我用一些数据填充内部文本，那么它会根据需要工作(您将开始标记、内部文本和结束标记都放在一行中)，如下所示...

If I populate the innertext with some data then it works as needed (you get opening tag, innertext and closing tag all on one line) like the following...

<element>value</element>

问题出现在没有值的标签上.这些应该以与上面相同的方式显示，当然，除了没有值，如下所示:

The problem arises with tags with no values. These SHOULD be displayed in the same way as above with the exception of no value of course, like the following:

<element></element>

然而，当内部文本有一个空字符串时，它会添加一个回车符 &不是预期的换行符！它最终看起来像下面这样:

However, when the innertext has an empty string it adds a carriage return & line feed which is not what is expected! It ends up looking like the following:

<element>
</element>

我的代码:

$input_dir  = "F:\uma\zz"
$output_dir = "F:\uma\zz"
[xml]$xdoc  = Get-Content "$input_dir\Subnet_Network_41.xml"
$inprange   = 5
foreach ($i in $inprange) {
    $xdoc.Subnet.Id   = "Network_$i"
    $xdoc.Subnet.Name = "Network_$i"
    $xdoc.Save("$output_dir\Subnet_Network_$i.xml")
}

推荐答案

我自己解决了这个问题.我已经使用 Select-xml 来读取 xml 文件并且它起作用了.它在保存 xml 文档时没有添加返回换行符.下面是工作代码.

I have fixed the issue myself. I have used Select-xml to read the xml file and it worked. It didnt add the return linebreaks while saving the xml document. below is the working code.

$input_dir  = "F:\uma\zz"
$output_dir = "F:\uma\zz"
$xdoc = ( Select-Xml -Path $input_dir\Subnet_Network_41.xml -XPath / ).Node
$inprange   = 5
foreach ($i in $inprange) {
    $xdoc.Subnet.Id   = "Network_$i"
    $xdoc.Subnet.Name = "Network_$i"
    $xdoc.Save("$output_dir\Subnet_Network_$i.xml")
}

要了解有关 Select-xml 的更多信息，请参阅以下博客:https://blog.stangroome.com/2014/02/10/powershell-select-xml-versus-get-content/

To know more about Select-xml refer the below blog: https://blog.stangroome.com/2014/02/10/powershell-select-xml-versus-get-content/

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