regexpowershellescapingspecial-characters

Does there exists a PowerShell Escape function for Special Characters

Does there exists a PowerShell Escape function to replace control characters (as e.g. a carriage return) with Special PowerShell Characters?
(Similar to the Regex.Escape(String) Method for escaping special regex characters)
Or is there a smarter way to do this than the self-answer?
(I am less concerned with the Unicode escape sequence: `u{x})

Solution

  • Using a regular expression callback:

    $Backtick = @{}
foreach ($Char in '0abefnrtv`'.ToCharArray()) {
    $Backtick[$ExecutionContext.InvokeCommand.ExpandString("``$Char")] = "``$Char"
}
$SpecialCharacters = '[' + (-Join $Backtick.get_Keys()) + ']'
function Escape($Text) {
    [regex]::Replace($Text, $SpecialCharacters, { param($Match) $Backtick[$Match.Value] })
}


    Escape 'Test
123'

Test`n123