Transpilers/Inline/Inline.Ruby.psx.ps1

<#
.SYNOPSIS
    Ruby Inline PipeScript Transpiler.
.DESCRIPTION
    Transpiles Ruby with Inline PipeScript into Ruby.

    PipeScript can be embedded in a multiline block that starts with ```=begin{``` and ends with } (followed by ```=end```)
#>

[ValidateScript({
    $cmdInfo = $_
    if ($cmdInfo.Source -match '\.rb$') {
        return $true
    }
    return $false    
})]
param(
# The command information. This will include the path to the file.
[Parameter(Mandatory,ValueFromPipeline)]
$CommandInfo
)

begin {
    # We start off by declaring a number of regular expressions:
    
    $startComment = '(?>[\r\n]{1,3}\s{0,}=begin[\s\r\n]{0,}\{)'
    $endComment   = '(?>}[\r\n]{1,3}\s{0,}=end)'

    $ignoreEach = '[\d\.]+',
        '""',
        "''"

    $IgnoredContext = "(?<ignore>(?>$($ignoreEach -join '|'))\s{0,}){0,1}"
    
    $startRegex = "(?<PSStart>${IgnoredContext}${startComment})"    
    $endRegex   = "(?<PSEnd>${endComment}${IgnoredContext})"

    $sourcePattern  = [Regex]::New("(?>$(
        $startRegex, $endRegex -join ([Environment]::NewLine + '|' + [Environment]::NewLine)
    ))"
, "IgnoreCase, IgnorePatternWhitespace", "00:00:05")
}

process {
    
    $fileInfo = $commandInfo.Source -as [IO.FileInfo]
    $fileText      = [IO.File]::ReadAllText($fileInfo.Fullname)

    .>PipeScript.Inline -SourceFile $CommandInfo.Source -SourceText $fileText -SourcePattern $sourcePattern
}