在字符串 (PowerShell) 中转义 HTML 特定字符的最佳方法是什么？
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What is the best way to escape HTML-specific characters in a string (PowerShell)?
提问by Kel
I'm generating some simple HTML with PowerShell script, and I would like to escape strings used in result HTML (since they can contain some HTML-specific symbols).
我正在使用 PowerShell 脚本生成一些简单的 HTML，我想转义结果 HTML 中使用的字符串（因为它们可以包含一些特定于 HTML 的符号）。
For example:
例如：
$a = "something <somthing else>";
should be converted to the following:
应转换为以下内容：
"something <something else>"
Is there any built-in function for that?
是否有任何内置功能？
回答by Andy Arismendi
There's a class that will do this in System.Web.
System.Web 中有一个类将执行此操作。
Add-Type -AssemblyName System.Web
[System.Web.HttpUtility]::HtmlEncode('something <somthing else>')
You can even go the other way:
你甚至可以走另一条路：
[System.Web.HttpUtility]::HtmlDecode('something <something else>')
回答by Curtis R
Starting with PowerShell 3.0, use [System.Net.WebUtility]for any of the four common operations:
从 PowerShell 3.0 开始，[System.Net.WebUtility]用于四种常见操作中的任何一种：
[System.Net.WebUtility]::HtmlEncode('something <somthing else>')
[System.Net.WebUtility]::HtmlDecode('something <somthing else>')
[System.Net.WebUtility]::UrlEncode('something <somthing else>')
[System.Net.WebUtility]::UrlDecode('something+%3Csomthing+else%3E')
[System.Web.HttpUtility]::HtmlEncodeis the common approach previous to .NET 4.0 (PowerShell 2.0 or earlier), but would require loading System.Web.dll:
[System.Web.HttpUtility]::HtmlEncode是 .NET 4.0（PowerShell 2.0 或更早版本）之前的常用方法，但需要加载System.Web.dll：
Add-Type -AssemblyName System.Web
Starting with .NET 4.0 (PowerShell 3.0) [System.Web.HttpUtility]::HtmlEnocdeinternally calls [System.Net.WebUtility]::HtmlEncode, therefore it makes sense to leave out the middle man (System.Web.dll).
从 .NET 4.0 (PowerShell 3.0) 开始，[System.Web.HttpUtility]::HtmlEnocde内部调用[System.Net.WebUtility]::HtmlEncode，因此省略中间人 ( System.Web.dll)是有意义的。
