如何以与 Windows 资源管理器相同的方式按文件名排序? [英] How to sort by file name the same way Windows Explorer does?
问题描述
这是应用于 powershell 的ASCIIbetical"顺序与自然"顺序的著名问题.为了能够以与资源管理器相同的方式在 powershell 中进行排序，您可以使用 这个包装器 通过 StrCmpLogicalW API，它实际上为 Windows 资源管理器执行自然排序.不过，这需要一些管道.
This is the famous problem of "ASCIIbetical" order versus "Natural" order as applied to powershell. To be able to sort in powershell the same way as explorer does, you can use this wrapper over StrCmpLogicalW API, that actually performs the natural sorting for Windows Explorer. This will require some plumbing though.
但是，这篇文章 表明在 python 中有一个三行的实现.人们希望 Get-ChildItem cmdlet 或至少文件系统提供程序可以具有内置的自然排序选项.不幸的是，他们没有.
However, this article suggests that there is a three liner implementation of the sort in python. One would hope that Get-ChildItem cmdlet or at least File System Provider can have built-in natural sorting option. Unfortunately, they do not.
那么问题来了，在 Powershell 中最简单的实现是什么?简单我的意思是编写最少的代码，并且可能没有第三方/外部脚本/组件.理想情况下，我想要一个 简短 Powershell 函数来为我进行排序.
So here is the question, what is simplest implementation of this in Powershell? By simple I mean the least amount of code to write, and possibly no third-party/external scripts/components. Ideally I want a short Powershell function that would do the sorting for me.
推荐答案
这是一些非常短的代码(只是 $ToNatural 脚本块)，它使用正则表达式和匹配评估器来解决问题为了用空格填充数字.然后我们像往常一样用填充数字对输入进行排序，结果实际上得到了自然顺序.
Here is some very short code (just the $ToNatural script block) that does the trick with a regular expression and a match evaluator in order to pad the numbers with spaces. Then we sort the input with padded numbers as usual and actually get natural order as a result.
$ToNatural = { [regex]::Replace($_, '\d+', { $args[0].Value.PadLeft(20) }) }
'----- test 1 ASCIIbetical order'
Get-Content list.txt | Sort-Object
'----- test 2 input with padded numbers'
Get-Content list.txt | %{ . $ToNatural }
'----- test 3 Natural order: sorted with padded numbers'
Get-Content list.txt | Sort-Object $ToNatural
输出:
----- test 1 ASCIIbetical order
1.txt
10.txt
3.txt
a10b1.txt
a1b1.txt
a2b1.txt
a2b11.txt
a2b2.txt
b1.txt
b10.txt
b2.txt
----- test 2 input with padded numbers
1.txt
10.txt
3.txt
a 10b 1.txt
a 1b 1.txt
a 2b 1.txt
a 2b 11.txt
a 2b 2.txt
b 1.txt
b 10.txt
b 2.txt
----- test 3 Natural order: sorted with padded numbers
1.txt
3.txt
10.txt
a1b1.txt
a2b1.txt
a2b2.txt
a2b11.txt
a10b1.txt
b1.txt
b2.txt
b10.txt
最后我们使用这个单行以自然顺序按名称对文件进行排序:
And finally we use this one-liner to sort files by names in natural order:
Get-ChildItem | Sort-Object { [regex]::Replace($_.Name, '\d+', { $args[0].Value.PadLeft(20) }) }
输出:
Directory: C:\TEMP\_110325_063356
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 2011-03-25 06:34 8 1.txt
-a--- 2011-03-25 06:34 8 3.txt
-a--- 2011-03-25 06:34 8 10.txt
-a--- 2011-03-25 06:34 8 a1b1.txt
-a--- 2011-03-25 06:34 8 a2b1.txt
-a--- 2011-03-25 06:34 8 a2b2.txt
-a--- 2011-03-25 06:34 8 a2b11.txt
-a--- 2011-03-25 06:34 8 a10b1.txt
-a--- 2011-03-25 06:34 8 b1.txt
-a--- 2011-03-25 06:34 8 b2.txt
-a--- 2011-03-25 06:34 8 b10.txt
-a--- 2011-03-25 04:54 99 list.txt
-a--- 2011-03-25 06:05 346 sort-natural.ps1
-a--- 2011-03-25 06:35 96 test.ps1
这篇关于如何以与 Windows 资源管理器相同的方式按文件名排序?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
