Expand-ScriptBlock.ps1
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function Expand-ScriptBlock { <# .Synopsis Prettifies a ScriptBlock. .Description Expands a ScriptBlock into a prettified ScriptBlock. Prettification is accomplished using a series of prettifiers. .EXAMPLE Expand-ScriptBlock -ScriptBlock { if (1) { if (2) { if (3) { } } } } .Example Expand-ScriptBlock -ScriptBlock { if (1) { $x = "ThisIsASequenceOfStuff", "ThatTakesUpLotsOfSpace", "SoTheAssignmentShouldBeHanging", $( if ($y) { "z" } ) } } #> [Alias('PSPrettify')] param( # The ScriptBlock that will be expanded [Parameter(Mandatory,ValueFromPipelineByPropertyName,ValueFromPipeline)] [ScriptBlock] $ScriptBlock, # A list of prettifiers. # If not provided, all prettifiers will be run. [Alias('Prettifiers')] [string[]] $Prettifier, # A collection of parameters. [Parameter(ValueFromPipelineByPropertyName)] [Collections.IDictionary] $Parameter = @{} ) begin { $prettifiers = if ($Prettifier) { Get-Prettifier -PrettifierName "(?>$($Prettifier -join '|')" -Match } else { Get-Prettifier } } process { $justScriptBlock = @{ScriptBlock=$ScriptBlock} $allParameters = $justScriptBlock + $Parameter foreach ($prettifyCommand in $prettifiers) { $allParameters['ScriptBlock'] = $ScriptBlock $couldRun = $prettifyCommand.CouldRun($allParameters) if (-not $couldRun.Count) { continue } $updatedScriptBlock = & $prettifyCommand @couldRun if ($updatedScriptBlock -is [ScriptBlock]) { $scriptBlock = $updatedScriptBlock } } $ScriptBlock } end { } } |