ConvertFrom-InlinePowerShell.ps1
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function ConvertFrom-InlinePowerShell { # #.Synopsis # Converts PowerShell inlined within HTML to ASP.NET #.Description # Converts PowerShell inlined within HTML to ASP.NET. # # PowerShell can be embedded with <| |> or <psh></psh> or <?psh ?> #.Example # ConvertFrom-InlinePowerShell -PowerShellAndHTML "<h1><| 'hello world' |></h1>" #.Link # ConvertTo-ModuleService #.Link # ConvertTo-CommandService [CmdletBinding(DefaultParameterSetName='PowerShellAndHTML')] [OutputType([string])] param( # The filename [Parameter(Mandatory=$true, ParameterSetName='FileName', ValueFromPipelineByPropertyName=$true)] [Alias('Fullname')] [ValidateScript({$ExecutionContext.SessionState.Path.GetResolvedPSPathFromPSPath($_)})] [string]$FileName, # A mix of HTML and PowerShell. PowerShell can be embedded with <| |> or <psh></psh> or <?psh ?> #|LinesForInput 20 [Parameter(Mandatory=$true, Position=0, ParameterSetName='PowerShellAndHtml', ValueFromPipelineByPropertyName=$true)] [string]$PowerShellAndHtml, # If set, the page generated will include this page as the ASP.NET master page [Parameter(ValueFromPipelineByPropertyName=$true)] [string]$MasterPage, # If set, will use a code file for the generated ASP.NET page. [Parameter(ValueFromPipelineByPropertyName=$true)] [string]$CodeFile, # If set, will inherit the page from a class name [Parameter(ValueFromPipelineByPropertyName=$true)] [string]$Inherit, # The method that will be used to run scripts in ASP.NET. If nothing is specified, runScript [string]$RunScriptMethod = 'runScript' ) process { if ($psCmdlet.ParameterSetName -eq 'FileName') { if ($fileName -like "*.ps1") { $PowerShellAndHtml = [IO.File]::ReadAllText($ExecutionContext.SessionState.Path.GetResolvedPSPathFromPSPath($FileName)) $PowerShellAndHtml = $PowerShellAndHtml -ireplace "<|", "<|" -ireplace "|>", "|>" $powerShellAndHtml = "<| $PowerShellAndHtml |>" } else { $PowerShellAndHtml = [IO.File]::ReadAllText($ExecutionContext.SessionState.Path.GetResolvedPSPathFromPSPath($FileName)) } } # First, try treating it as data language. If it's data language, then use the parser to pick out the comments $dataLanguageResult = try { $asScriptBlock = [ScriptBlock]::Create($PowerShellAndHtml) $asDataLanguage = & ([ScriptBlock]::Create("data { $asScriptBlock }")) } catch { Write-Verbose "Could not convert into script block: $($_ | Out-string)" } if ($dataLanguageResult) { # Use the tokenizer! } else { # Change the tags $powerShellAndHtml = $powerShellAndHtml -ireplace "\<psh\>", "<|" -ireplace "\</psh\>", "|>" -ireplace "\<\?posh\>", "<|" -ireplace "\<\?psh", "<|" -ireplace "\?>", "|>" $start = 0 $loopCount = 0 $powerShellAndHtmlList = do { if ($loopCount -ge 3) { break } $found = $powerShellAndHtml.IndexOf("<|", $start) if ($found -eq -1) { $loopCount++; continue } # emite the chunk before the found section $powershellAndHtml.Substring($start, $found - $start) $endFound = $powerShellAndHtml.IndexOf("|>", $found) if ($endFound -eq -1) { $loopCount++; continue } $scriptToBe = $powerShellAndHtml.Substring($found + 2, $endFound - $found - 2) $scriptToBe = $scriptToBe.Replace("<|", "<|").Replace("|>", "|>") $scriptToBe = [ScriptBLock]::Create($scriptToBe) if (-not $?) { break } $embed = "`$lastCommand = { $scriptToBe } if (`$module) { . `$module `$LastCommand | Out-Html} else { . `$lastCommand | Out-HTML } ".Replace('"','""') "$(if ($MasterPage) { '<asp:Content runat="server">' } else {'<%' }) ${RunScriptMethod}(@`"$embed`"); $(if ($MasterPage) { '</asp:Content>' } else {'%>'})" $start = $endFound + 2 } while ($powerShellAndHtml.IndexOf("<|", $start) -ne -1) $powerShellAndHtml = ($powerShellAndHtmlList -join '') + $powerShellAndHtml.Substring($start) $Params = @{Text=$powerShellAndHtml } if ($masterPage) { $Params.masterPage = $masterPage $params.NoBootstrapper = $true } if ($CodeFile) { $Params.CodeFile = $CodeFile $params.NoBootstrapper = $true } if ($inherit) { $Params.Inherit = $Inherit $params.NoBootstrapper = $true } Write-AspDotNetScriptPage @params } } } |