Powershell-如何用雙引號將數組對象中的特定行括起來？

Question

假設我有一個文本文件，其內容是：

======= Section 1 ==========
This is line one
This is line two
This is line three
======= Section 2 ==========
This is line Four
This is line Five
This is line Six

我使用$SourceFile = Get-Content '.\source.txt' -Delimiter '==='將其導入 Powershell 然后使用$Objects = $SourceFile -replace '^=.*', ''我現在有了這個$Objects數組具有：

This is line one
This is line two
This is line three

和

This is line Four
This is line Five
This is line Six

我真正想知道的是如何將特定行用雙引號或括號等括起來，以便所有對象數組中的特定行也以相同的方式處理。

例如，兩個數組的第 3 行應該用雙引號括起來：

This is line one
This is line two
"This is line three"

和

This is line Four
This is line Five
"This is line Six"

我嘗試了很多東西，最接近的是$test = $objects -replace 'This is line three', '"This is line three"'正如你所看到的，這對於許多數組的對象來說並不理想。

我對Powershell還是很陌生，任何幫助將不勝感激

Answer 1

假設您想將每個塊中的第 3 行用雙引號括起來：

# Read the input file and split it into blocks of lines by a
# regex matching the section lines (without including the section lines).
(Get-Content -Raw file.txt) -split '(?m)^===.*\r?\n' -ne '' |
  ForEach-Object {  # Process each block of lines (multi-line string)
    # Split this block into individual lines, ignoring a trailing newline.
    $linesInBlock = $_ -replace '\r?\n\z' -split '\r?\n' 
    # Modify the 3rd line.
    $linesInBlock[2] = '"{0}"' -f $linesInBlock[2]
    # Output the lines, including the modification.
    Write-Verbose -Verbose "-- next block"
    $linesInBlock
  }

輸出樣本輸入：

VERBOSE: -- next block
This is line one
This is line two
"This is line three"
VERBOSE: -- next block
This is line Four
This is line Five
"This is line Six"