Private/Functions/Expand.ps1
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function JsonMenu.Functions.Expand { <# .SYNOPSIS Expands all the variables in a string or executes the script is the string starts and ends with curly brackets .DESCRIPTION In the context of the running application, there are a lot of variables set. this function replaces all the referenced context variables in a string with their actual value. The function is a recursive function that recursivly loop till it finds a string. This string is expanded for the possible variables that are in the string .EXAMPLE $MyWisdom = "Hello World" $json = @{ { "WhatAWiseManOnceSaid": "I said: $MyWisdom" } } $wisdom = $json | Convert-FromJson Write-Host $wisdom.WhatAWiseManOnceSaid | JsonMenu.Functions.Expand .INPUTS [PSCustomObject] $strubg .OUTPUTS [string] .NOTES Articles (and therefor credits) that helped me on this are - https://www.ais.com/expanding-variable-strings-in-powershell/ - https://nerdymishka.com/articles/expand-string-in-powershell/ #> param ( [Parameter(ValueFromPipeline)] [string] $InputObject ) process { # return nothing if there is no input if ($null -eq $InputObject) { return $null } if ( $InputObject.StartsWith("{") -and $InputObject.EndsWith("}") ) { # remove brackets $script = $InputObject.Substring(1, $InputObject.Length - 2) # convert to scriptblock $scriptBlock = [ScriptBlock]::Create($script) # execute scriptblock in current scope . $scriptBlock } else { $ExecutionContext.InvokeCommand.ExpandString($InputObject) } } } |