function Use-Less {             
            
    <#
    .Synopsis
        Creates a .CSS file from a .LESS file
    .Description
        Uses DotLess to create a .CSS file from a .LESS file. 
    .Link
        http://lesscss.org/
    .Link
        http://www.dotlesscss.org/
    .Example
        Use-Less -LessCss ".example {width: 10 + 10 px}"
    #>            
    [OutputType([string])]            
    param(            
    # The Less CSS content.  To learn how to use LessCSS, visit the [LessCSS website](http://lesscss.org/)            
    #|LinesForInput 50            
    [Parameter(Mandatory=$true,Position=0,ValueFromPipelineByPropertyName=$true)]            
    [string]            
    $LessCss,            
                
    # If provided, will change variables in the LESS CSS file prior to compiling it.            
    [Parameter(Position=1,ValueFromPipelineByPropertyName=$true)]            
    [Hashtable]            
    $Option                        
    )            
            
    process {            
        if (-not ('Dotless.core.less' -as [type])) {            
            
            # Find the less tool            
            $lessTool = Get-ChildItem -Path $env:Temp\DotLess\dotless.Core.dll -ErrorAction SilentlyContinue            
                    
            # If it's not found, download it            
            if (-not $lessTool) {            
                # Get the downlaods page            
                $dotLessLinks = Get-Web -Url "https://github.com/dotless/dotless/downloads" -UseWebRequest -Tag 'a'             
                # Find the latest build            
                $dotLessLink = $dotLessLinks |             
                    Where-Object { $_.Xml.Href -like "*.zip" -and $_.Xml.InnerText -like "*dotless*" }|             
                    Select-Object -First 1              
            
                # Download it            
                $zipContent = Get-Web -Url ("https://github.com" + $dotLessLink.Xml.Href) -UseWebRequest -AsByte             
                        
                # Save it            
                [IO.File]::WriteAllBytes("$env:Temp\dotless.zip", $zipContent)            
            
                # Expand it            
                Expand-Zip -ZipPath "$env:Temp\dotless.zip" -OutputPath "$env:Temp\DotLess"                      
            }            
            
        }            
            
                    
            
        if ($Option) {            
            $lessLines = $LessCss -split "[$([Environment]::NewLine)]" -ne ''            
            
            $newLess = foreach ($line in $lessLines) {            
                if ($line -like "@*:*" -and $line -notlike "@*:*@*") {            
                    $optionName = ($line -split ":")[0].TrimStart('@')            
                    if ($option.$optionName) {            
                        "@${optionName}:$($Option.$optionName);"            
                    } else {            
                        $line             
                    }            
                } else {            
                    $line            
                }            
            }            
            
            $LessCss = $newLess -join ([Environment]::NewLine)            
        }            
            
                    
        # Get the less tool again            
        $lessTool = Get-ChildItem -Path $env:Temp\DotLess\dotless.core.dll            
            
        # Quit if we can't            
        if (-not $lessTool) { return }             
                    
            
        $null = [Reflection.Assembly]::LoadFrom($lessTool.Fullname)            
            
        # Run it            
        $lessResult = [dotless.Core.less]::Parse($LessCss)            
            
        $lessResult            
                    
                    
                    
            
    }            
            
}