got a html which contains 2 lines of texts.
<!-- START -->
asdf
<!-- END -->
between those 2 marker can stand anything and its changing data so its not same data all the time. Is there a possibility to erase all lines between those 2?
Have tried with regex
(?sm)<!-- START -->.*?(?=^<!-- END -->)
but he always starts with the first line and not below.
Can someone help me to start after with regex and then delete it?
The main issue here is that you match without capturing the left-hand delimiter.
To match and erase arbitrary content in between two multichar delimiters you need to either put both delimiters inside lookarounds:
-replace '(?<=left_hand_delim).*?(?=right_hand_delim)'
Or, use capturing groups in the regex and backreferences in the replacement:
-replace '(left_hand_delim).*?(right_hand_delim)', '$1$2'
You may use
$regex='(?ms)(?<=^\s*<!-- OPC-ITEM-ENTRIES START -->\s*).*?(?=\s*<!-- OPC-ITEM-ENTRIES END -->)'
(Get-Content -raw $file) -replace $regex, '$1$2' | Set-Content $outfile
See regex demo 1 and regex demo #2 (see Context tab).
You must use -raw option to read in the file contents into a single variable since you need the s singleline flag to let . match any char including newlines.
html agility pack.(?=^<!-- END -->)You could try a capturing group and use the group in the replacement(?sm)<!-- START -->\r?\n(.*?)\r?\n<!-- END -->regex101.com/r/CGun4i/1 but html and regex is usually not a good combination.$regex=@' (?ms)^(\s*<!-- OPC-ITEM-ENTRIES START -->\s*?\r?\n).*?\r?\n(\s*<!-- OPC-ITEM-ENTRIES END -->\s*) '@ $delete = (Get-Content -raw $file) -replace $regex, '$1$2' $delete |Set-Content C:\Users\marku\Desktop\GEA\Powershell\mdi-opc-items.html