Nice PowerShell prompt

Been playing around with PowerShell the last days, and with nothing else better to do I did a nice looking prompt. :-)

This prompt will give you a marker if you run it as Administrator and another mark if you are outside the filesystem.

How to:
First you need to edit your profile so it autoload the new prompt.

notepad $profile

Then paste this code, save and start a new PowerShell command line.

function prompt
{
        # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
        #                                                                              Rikard Ronnkvist / snowland.se
        # Multicolored prompt with marker for windows started as Admin and marker for providers outside filesystem
        # Examples
        #    C:\Windows\System32>
        #    [Admin] C:\Windows\System32>
        #    [Registry] HKLM:\SOFTWARE\Microsoft\Windows>
        #    [Admin] [Registry] HKLM:\SOFTWARE\Microsoft\Windows>
        # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

        # New nice WindowTitle
        $Host.UI.RawUI.WindowTitle = "PowerShell v" + (get-host).Version.Major + "." + (get-host).Version.Minor + " (" + $pwd.Provider.Name + ") " + $pwd.Path

        # Admin ?
        if( (
                New-Object Security.Principal.WindowsPrincipal (
                        [Security.Principal.WindowsIdentity]::GetCurrent())
                ).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator))
        {
                # Admin-mark in WindowTitle
                $Host.UI.RawUI.WindowTitle = "[Admin] " + $Host.UI.RawUI.WindowTitle

                # Admin-mark on prompt
                Write-Host "[" -nonewline -foregroundcolor DarkGray
                Write-Host "Admin" -nonewline -foregroundcolor Red
                Write-Host "] " -nonewline -foregroundcolor DarkGray
        }

        # Show providername if you are outside FileSystem
        if ($pwd.Provider.Name -ne "FileSystem") {
                Write-Host "[" -nonewline -foregroundcolor DarkGray
                Write-Host $pwd.Provider.Name -nonewline -foregroundcolor Gray
                Write-Host "] " -nonewline -foregroundcolor DarkGray
        }

        # Split path and write \ in a gray
        $pwd.Path.Split("\") | foreach {
            Write-Host $_ -nonewline -foregroundcolor Yellow
            Write-Host "\" -nonewline -foregroundcolor Gray
        }

        # Backspace last \ and write >
        Write-Host "`b>" -nonewline -foregroundcolor Gray

    return " "
}