ConvertTo-PsParameterString.ps1
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.SYNOPSIS Convert splatable PowerShell paramters to PowerShell parameter string syntax. .DESCRIPTION .EXAMPLE PS C:\>ConvertTo-PsParameterString @{ key1='value1'; key2='value2' } Convert hashtable to PowerShell parameters string. .INPUTS System.String #> function ConvertTo-PsParameterString { [CmdletBinding()] [OutputType([string])] param ( # [Parameter(Mandatory=$true, ValueFromPipeline=$true, Position=0)] [AllowNull()] [object] $InputObjects, # [Parameter(Mandatory=$false)] [switch] $Compact, # [Parameter(Mandatory=$false, Position=1)] [type[]] $RemoveTypes = ([string],[bool],[int],[long]), # [Parameter(Mandatory=$false)] [switch] $NoEnumerate ) begin { function GetPsParameterString ($InputObject) { $OutputString = New-Object System.Text.StringBuilder ## Add Value switch ($InputObject.GetType()) { {$_.Equals([Hashtable]) -or $_.Equals([System.Collections.Specialized.OrderedDictionary]) -or $_.FullName.StartsWith('System.Collections.Generic.Dictionary')} { foreach ($Parameter in $InputObject.GetEnumerator()) { [string] $ParameterValue = (ConvertTo-PsString $Parameter.Value -Compact:$Compact -NoEnumerate) if ($ParameterValue.StartsWith('[')) { $ParameterValue = '({0})' -f $ParameterValue } [void]$OutputString.AppendFormat(' -{0} {1}',$Parameter.Key,$ParameterValue) } break } {$_.BaseType.Equals([Array]) -or $_.Equals([System.Collections.ArrayList]) -or $_.FullName.StartsWith('System.Collections.Generic.List')} { foreach ($Parameter in $InputObject) { [string] $ParameterValue = (ConvertTo-PsString $Parameter -Compact:$Compact -NoEnumerate) if ($ParameterValue.StartsWith('[')) { $ParameterValue = '({0})' -f $ParameterValue } [void]$OutputString.AppendFormat(' {0}',$ParameterValue) } break } Default { $Exception = New-Object ArgumentException -ArgumentList ('Cannot convert input of type {0} to PowerShell parameter string. Use -NoEnumerate if providing a single splatable array.' -f $InputObject.GetType()) Write-Error -Exception $Exception -Category ([System.Management.Automation.ErrorCategory]::ParserError) -CategoryActivity $MyInvocation.MyCommand -ErrorId 'ConvertPowerShellParameterStringFailureTypeNotSupported' -TargetObject $InputObject -ErrorAction Stop } } if ($NoEnumerate) { $listOutputString.Add($OutputString.ToString()) } else { Write-Output $OutputString.ToString() } } if ($NoEnumerate) { $listOutputString = New-Object System.Collections.Generic.List[string] } } process { if ($PSCmdlet.MyInvocation.ExpectingInput -or $NoEnumerate) { GetPsParameterString $InputObjects } else { foreach ($InputObject in $InputObjects) { GetPsParameterString $InputObject } } } end { if ($NoEnumerate) { $OutputArray = New-Object System.Text.StringBuilder if ($PSVersionTable.PSVersion -ge [version]'6.0') { [void]$OutputArray.AppendJoin('',$listOutputString) } else { [void]$OutputArray.Append(($listOutputString -join '')) } Write-Output $OutputArray.ToString() } } } # 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