Getting multiple lines of code in PowerShell-CodePudding

I want to get the multiple lines from a text file by using a pattern with the character at the beginning of the string to the character at the end of the string,and have an output that will be copied as multiple lines also.

<#
  get
  these
  lines
#>

I have tried using regex "<#(. )#>", it gets the lines but it copies as one string only.

Output: <# get these lines #>

CodePudding user response：

FileLines.TXT:

<# Line1 #>
## Line2 ##
<# Line3 #>
<# Line4 #>
## Line5 ##
<# Line6 #>
## Line7 ##
<# Line8 #>
<# Line9 #>

Code:

(Get-Content -Path "$PSScriptRoot\FileLines.TXT") | Where-Object { $_ -match "<#.*#>"}

Results:

<# Line1 #>        
<# Line3 #>        
<# Line4 #>        
<# Line6 #>        
<# Line8 #>        
<# Line9 #>

FileLines2.TXT:

 <# Line1 #>  
  <# Line2 #>   
    <# Line3 #>
  ## Line4 ##  
  ## Line5 ##  
  <# Line6 #>
<# Line7 #> 
## Line8 ##
   ## Line9 ##

Code:

(Get-Content -Path "$PSScriptRoot\FileLines2.TXT") | Where-Object { $_ -match "^\s*<#.*#>\s*$"} | ForEach-Object {
    Write-Host "$($_.Trim())"
}

Results:

<# Line1 #>
<# Line2 #>
<# Line3 #>
<# Line6 #>
<# Line7 #>

CodePudding user response：

FileLines3.TXT:

Random info1
<#
  get1
  these1
  lines1
#>
Random info2
<#
  get2
  these2
  lines2
#>
Random info3

Code:

$FileContent = Get-Content -Path "$PSScriptRoot\FileLines3.TXT" -Raw
$Lines = while($FileContent -match '(?ms)^\s*<#\s*$(?<Block>.*?)#>\s*$(?<After>.*)') {
    $Matches.Block.Split([Environment]::NewLine)
    $FileContent = $Matches.After
}
$Lines | Where-Object {$_}

Results:

  get1
  these1
  lines1
  get2
  these2
  lines2