如何在 PowerShell 字符串文字中编码 32 位 Unicode 字符? [英] How to encode 32-bit Unicode characters in a PowerShell string literal?

问题描述

这个堆栈溢出问题 处理 16 位 Unicode 字符.我想要一个支持 32 位字符的类似解决方案.请参阅此链接以获取各种 Unicode 图表的列表.例如，一系列 32 位字符是 音乐符号.

This Stack Overflow question deals with 16-bit Unicode characters. I would like a similar solution that supports 32-bit characters. See this link for a listing of the various Unicode charts. For example, a range of characters that are 32-bit are the Musical Symbols.

上面链接的问题中的答案不起作用，因为它将 System.Int32 值转换为 System.Char，这是一种 16 位类型.

The answer in the question linked above doesn't work because it casts the System.Int32 value as a System.Char, which is a 16-bit type.

让我澄清一下，我并不特别关心显示 32 位 Unicode 字符，我只想将字符存储在字符串变量中.

Let me clarify that I don't particularly care about displaying the 32-bit Unicode character, I just want to store the character in a string variable.

编辑 #2:我编写了一个 PowerShell 片段，它使用标记答案及其注释中的信息.我本来想把它放在另一个评论中，但评论不能是多行的.

Edit #2: I wrote a PowerShell snippet that uses the info in the marked answer and its comments. I would have wanted to put this in another comment, but comments can't be multi-line.

$inputValue = '1D11E'
$hexValue = [int]"0x$inputValue" - 0x10000
$highSurrogate = [int]($hexValue / 0x400) + 0xD800
$lowSurrogate = $hexValue % 0x400 + 0xDC00
$stringValue = [char]$highSurrogate + [char]$lowSurrogate

Dour High Arch 的答案仍然值得称赞，因为它帮助我最终理解了代理对.

Dour High Arch still deserves credit for the answer for helping me finally understand surrogate pairs.

推荐答案

假设 PowerShell 使用 UTF-16，32 位代码点表示为 代理人.例如，U+10000 表示为:

Assuming PowerShell uses UTF-16, 32-bit code points are represented as surrogates. For example, U+10000 is represented as:

0xD100 0xDC00

即两个16位字符；十六进制 D100 和 DC00.

That is, two 16-bit chars; hex D100 and DC00.

祝你找到带有代理字符的字体.

Good luck finding a font with surrogate chars.

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