Languages/TCL/TCL-Language.ps.ps1

Language function TCL {
<#
.SYNOPSIS
    TCL/TK PipeScript Language Definition.
.DESCRIPTION
    Allows PipeScript to generate TCL or TK.

    Because TCL Scripts only allow single-line comments, this is done using a pair of comment markers.

    # { or # PipeScript{ begins a PipeScript block

    # } or # }PipeScript ends a PipeScript block

    ~~~tcl
    # {

    Uncommented lines between these two points will be ignored

    # # Commented lines will become PipeScript / PowerShell.
    # param($message = "hello world")
    # "puts `"$message`""

    # }
    ~~~
.EXAMPLE
    Invoke-PipeScript {
        $tclScript = '
    # {

    # # Uncommented lines between these two points will be ignored

    # # Commented lines will become PipeScript / PowerShell.
    # param($message = "hello world")
    # "puts `"$message`""

    # }
    '
    
        [OutputFile('.\HelloWorld.ps1.tcl')]$tclScript
    }

    Invoke-PipeScript .\HelloWorld.ps1.tcl
#>

[ValidatePattern('\.t(?>cl|k)$')]
param()
    $FilePattern = '\.t(?>cl|k)$'
    # We start off by declaring a number of regular expressions:
    $startComment = '(?>\#\s{0,}(?:PipeScript)?\s{0,}\{)'
    $endComment   = '(?>\#\s{0,}\}\s{0,}(?:PipeScript)?\s{0,})'        
    $startPattern = "(?<PSStart>${startComment})"
    $endPattern   = "(?<PSEnd>${endComment})"

    # Create a splat containing arguments to the core inline transpiler
    # Using -LinePattern will skip any inline code not starting with #
    $LinePattern   = "^\s{0,}\#\s{0,}"
}