# demo file: "C:\Documents and Settings\hrottenberg\My Documents\WindowsPowerShell\scripts\book\wikideploy.txt"
param ( $InputFile, $Server )
Connect-VIServer -Server $Server
$text = Get-Content $InputFile
$tree = @{} # Hashtable to store hierarchy
$DataCenterIndex, $FolderIndex, $SubFolderIndex = 0
$Datacenter, $Folder, $SubFolder = $null
$FolderRoot = Get-Folder -NoRecursion # New DCs are created here

for ( $i = 0; $i -lt $text.length; $i++ ) {
	# Alphanumeric text in first column is a Datacenter
	if ( $text[$i] -match '^\w+' ) {
		$DataCenterIndex = $i
		$tree[$DataCenterIndex] = @{}
	}
	# One tab followed by text is a Folder
	elseif ( $text[$i] -match '^\t\w+' ) {
		$FolderIndex = $i
		$tree[$DataCenterIndex][$FolderIndex] = @{}
	}
	# Two tabs followed by text is a SubFolder
	elseif ( $text[$i] -match '^\t{2}\w+' ) {
		$SubFolderIndex = $i
		$tree[$DataCenterIndex][$FolderIndex][$SubFolderIndex] = @{}
	}
}
$tree.Keys | ForEach-Object {
	$DataCenterIndex = $_
	$DatacenterName = $text[$_].Trim() # Remove leading tab 
	Write-Host "Datacenter: $DatacenterName" -ForegroundColor Red
	$dc = New-Datacenter -Name $DatacenterName -Location $FolderRoot
	$tree[$_].Keys | ForEach-Object {
		$FolderIndex = $_
		$FolderName = $text[$_].Trim()
		Write-Host "`tFolder: $FolderName" -ForegroundColor Blue
		$Folder = New-Folder -Name $FolderName -Location $dc
		$tree[$DataCenterIndex][$FolderIndex].Keys | ForEach-Object {
			$SubFolderName = $text[$_].Trim()
			Write-Host "`t`tSubFolder: $SubFolderName" -Fore Green
			$SubFolder = New-Folder -Name $SubFolderName -Location $Folder
		}
	}
}