Private/Test-ValidFriendlyName.ps1
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function Test-ValidFriendlyName { [CmdletBinding()] param( [Parameter(Mandatory,Position=0)] [string]$FriendlyName, [switch]$ThrowOnFail ) # Since our object names ultimately correspond to filesystem paths, # we want to be overly cautious with the characters we allow so things # remain cross-platform friendly. We're also going to exclude some # characters that are technically cross-platform friendly but have special # meaning in some shells. $reFriendly = [regex]'^[0-9a-zA-Z-._!]+$' if ($FriendlyName -match $reFriendly) { return $true } # otherwise, fail if ($ThrowOnFail) { throw "'$_' contains incompatible characters. Please use only A-Z, a-z, 0-9, or any of '-._!'" } else { return $false } } |