Transpilers/Templates/CPlusPlus.Template.psx.ps1
|
<# .SYNOPSIS C/C++ Template Transpiler. .DESCRIPTION Allows PipeScript to generate C, C++, Header or Swig files. Multiline comments with /*{}*/ will be treated as blocks of PipeScript. Multiline comments can be preceeded or followed by 'empty' syntax, which will be ignored. The C++ Inline Transpiler will consider the following syntax to be empty: * ```null``` * ```""``` * ```''``` #> [ValidatePattern('\.(?>c|cpp|h|swig)$')] param( # The command information. This will include the path to the file. [Parameter(Mandatory,ValueFromPipeline,ParameterSetName='TemplateFile')] [Management.Automation.CommandInfo] $CommandInfo, # If set, will return the information required to dynamically apply this template to any text. [Parameter(Mandatory,ParameterSetName='TemplateObject')] [switch] $AsTemplateObject, # A dictionary of parameters. [Collections.IDictionary] $Parameter, # A list of arguments. [PSObject[]] $ArgumentList ) begin { # We start off by declaring a number of regular expressions: $startComment = '/\*' # * Start Comments ```\*``` $endComment = '\*/' # * End Comments ```/*``` $Whitespace = '[\s\n\r]{0,}' # * IgnoredContext ```String.empty```, ```null```, blank strings and characters $IgnoredContext = "(?<ignore>(?>$("null", '""', "''" -join '|'))\s{0,}){0,1}" # * StartRegex ```$IgnoredContext + $StartComment + '{' + $Whitespace``` $startRegex = "(?<PSStart>${IgnoredContext}${startComment}\{$Whitespace)" # * EndRegex ```$whitespace + '}' + $EndComment + $ignoredContext``` $endRegex = "(?<PSEnd>$Whitespace\}${endComment}\s{0,}${IgnoredContext})" # Create a splat containing arguments to the core inline transpiler $Splat = [Ordered]@{ StartPattern = $startRegex EndPattern = $endRegex } } process { # If we have been passed a command if ($CommandInfo) { # add parameters related to the file. $Splat.SourceFile = $commandInfo.Source -as [IO.FileInfo] $Splat.SourceText = [IO.File]::ReadAllText($commandInfo.Source) } if ($Parameter) { $splat.Parameter = $Parameter } if ($ArgumentList) { $splat.ArgumentList = $ArgumentList } # If we are being used within a keyword, if ($AsTemplateObject) { $splat # output the parameters we would use to evaluate this file. } else { # Otherwise, call the core template transpiler .>PipeScript.Template @Splat # and output the changed file. } } |