Private/Get-KoanAst.ps1
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using namespace System.Management.Automation.Language function Get-KoanAst { <# .SYNOPSIS Get the AST for a Koan. .DESCRIPTION Parse the content of a Koan file into an AST. Ignores "using module" statements. .PARAMETER Path The path to a Koan file. #> [CmdletBinding()] [OutputType([System.Management.Automation.Language.ScriptBlockAst])] param ( [Parameter(ValueFromPipeline, ValueFromPipelineByPropertyName)] [Alias('PSPath')] [string] $Path ) process { try { if (-not (Test-Path $Path)) { return } $tokens = $errors = $null # Remove the "using module" line. Avoids a slow call to Get-Module -ListAvailable from "using module". $content = Get-Content -Path $Path -Raw foreach ($match in [Regex]::Matches($content, 'using module \S+')) { $content = $content.Remove( $match.Index, $match.Length ).Insert( $match.Index, ' ' * $match.Length ) } [Parser]::ParseInput( $content, [Ref]$tokens, [Ref]$errors ) } catch { $PSCmdlet.ThrowTerminatingError($_) } } } |