Powershell文本搜索-多个匹配项

我有一组.txt文件，其中包含以下一个或两个字符串

“红色”、“蓝色”、“绿色”、“橙色”、“紫色”等等

列表中还有更多（50+）种可能性

如果有帮助，我可以判断.txt文件是否包含一个或两个项目，但不知道它们是哪一个。字符串模式总是在它们自己的行上

我希望脚本具体告诉我它找到了哪一个或两个字符串匹配（来自主列表），以及找到它们的顺序。（哪一个是第一个）

因为我有很多文本文件要搜索，所以我希望在搜索时将输出结果写入CSV文件

FILENAME1,first_match,second_match

file1.txt,blue,red
file2.txt,red, blue
file3.txt,orange,
file4.txt,purple,red
file5.txt,purple,
...

我曾尝试使用许多单独的

Select Strings

返回布尔结果来设置变量和找到的任何匹配项，但随着可能的字符串数量的增加，它很快变得丑陋。我对这个问题的搜索结果没有给我提供任何新的想法来尝试。（我肯定我问的方式不对）

我需要循环浏览每个文件中的每一行文本吗

通过检查每个搜索字符串是否存在，我是否陷入了消除方法的过程

---

我正在寻找一种更优雅的方法来解决这个问题。（如果存在）

您可以使用regex搜索以获取索引（startpos.in line）并结合

选择字符串，该字符串返回行号，您就可以开始了

Select String
支持将数组作为
-Pattern
的值，但不幸的是，即使在使用
-AllMatches
（错误？）时，它也会在第一次匹配后的一行上停止。因此，我们必须对每个单词/模式搜索一次。尝试：

#List of words. Had to escape them because Select-String doesn't return Matches-objects (with Index/location) for SimpleMatch
$words = "purple","blue","red" | ForEach-Object { [regex]::Escape($_) }
#Can also use a list with word/sentence per line using $words = Get-Content patterns.txt | % { [regex]::Escape($_.Trim()) }

#Get all files to search
Get-ChildItem -Filter "test.txt" -Recurse | Foreach-Object { 
    #Has to loop words because Select-String -Pattern "blue","red" won't return match for both pattern. It stops on a line after first match
    foreach ($word in $words) {
        $_ | Select-String -Pattern $word |
        #Select the properties we care about
        Select-Object Path, Line, Pattern, LineNumber, @{n="Index";e={$_.Matches[0].Index}}
    }
} |
#Sort by File (to keep file-matches together), then LineNumber and Index to get the order of matches
Sort-Object Path, LineNumber, Index |
Export-Csv -NoTypeInformation -Path Results.csv -Encoding UTF8

Results.csv

"Path","Line","Pattern","LineNumber","Index"
"C:\Users\frode\Downloads\test.txt","file1.txt,blue,red","blue","3","10"
"C:\Users\frode\Downloads\test.txt","file1.txt,blue,red","red","3","15"
"C:\Users\frode\Downloads\test.txt","file2.txt,red, blue","red","4","10"
"C:\Users\frode\Downloads\test.txt","file2.txt,red, blue","blue","4","15"
"C:\Users\frode\Downloads\test.txt","file4.txt,purple,red","purple","6","10"
"C:\Users\frode\Downloads\test.txt","file4.txt,purple,red","red","6","17"
"C:\Users\frode\Downloads\test.txt","file5.txt,purple,","purple","7","10"

不是很直观但很优雅

下面的switch语句
返回
哪里

file1
首先包含
蓝色
，然后包含
红色
file2
首先包含
red
，然后包含
blue
是的，优雅。这正是我所希望的。由于我的列表很长，有没有从文本文件加载$regex的方法？类似于
“（$（（gc$env:temp\test.txt）-join'|'）”“
可能会帮助您开始
$regex = "(purple|blue|red)"

Get-ChildItem $env:TEMP\test\*.txt | Foreach-Object{
    $result = $_.FullName
    switch -Regex -File $_
    {
        $regex {$result = "$($result),$($matches[1])"}
    }
    $result
}

C:\Users\Lieven Keersmaekers\AppData\Local\Temp\test\file1.txt,blue,red
C:\Users\Lieven Keersmaekers\AppData\Local\Temp\test\file2.txt,red,blue