Token-replacement template engine for PowerShell

gistfile1.ps1

<#
Token-replacement template engine for PowerShell courtesy to http://www.bricelam.net/2012/09/simple-template-engine-for-powershell.html
Usage:
    Merge-Tokens 'Hello, $target$! My name is $self$.' @{ target = 'World'; self = 'Brice' }
#>

function Merge-Tokens($template, $tokens)
{
    return [regex]::Replace($template, '\$(?<token>\w+)\$', 
        { param($match) $tokens[$match.Groups['token'].Value] })
}