Regex: Select everything from the beginning of the file to another string / word / tag

Vasile Caraus · Feb 14, 2021, 1:53 PM

hello. I need to Select everything from the beginning of the file to <body> tag. I have to make a replacement in the PowerShell. this is the regex, seems good in notepad++, but in PowerShell is not working. Can anybody give me another good regex for me?

\A(.*)$[\s\S]+(<body>)

$sourceFiles = Get-ChildItem 'c:\Folder1'  
$destinationFolder = 'c:\Folder2'

foreach ($file in $sourceFiles) {

$sourceContent = Get-Content $file.FullName -Raw
$contentToInsert = [regex]::match($sourceContent,"\A(.*)$[\s\S]+(<body>)").value
$destinationContent = Get-Content $destinationFolder\$($file.Name) -Raw
$destinationContent = $destinationContent -replace '\A(.*)$[\s\S]+(<body>)',$contentToInsert

Set-Content -Path $destinationFolder\$($file.Name) -Value $destinationContent -Encoding UTF8

} #end foreach file

Vasile Caraus · Feb 14, 2021, 12:53 PM

got it, my regex formula was a little wrong. I put an extra $ :)

It should be: \A(.*)[\s\S]+(<body>) or \A(.*)[\s\S]+(<body>)|\2 (so, without $)

$sourceFiles = Get-ChildItem 'c:\Folder1'  
$destinationFolder = 'c:\Folder2'

foreach ($file in $sourceFiles) {

$sourceContent = Get-Content $file.FullName -Raw
$contentToInsert = [regex]::match($sourceContent,"\A(.*)[\s\S]+(<body>)").value
$destinationContent = Get-Content $destinationFolder\$($file.Name) -Raw
$destinationContent = $destinationContent -replace '\A(.*)[\s\S]+(<body>)',$contentToInsert

Set-Content -Path $destinationFolder\$($file.Name) -Value $destinationContent -Encoding UTF8

} #end foreach file

astrosofista · Feb 14, 2021, 1:53 PM

Hi @Vasile-Caraus

Assuming the tag should not be matched, try this regex in Notepad++ v7.9.1:

Search: (?s)\A(.*?)(?=<body>)

Take care and have fun!

PeterJones · Feb 15, 2021, 2:46 AM

@Vasile-Caraus said in Regex: Select everything from the beginning of the file to another string / word / tag:

seems good in notepad++

As a reminder, this Forum is about Notepad++ . If a regex works in Notepad++, then this isn’t really the right place to ask about your problem.

I am glad the you figured it out, but let’s keep any regex discussion here on topic.