Adding Inline Ruby Support (#42)

Author: James Brundage

Transpilers/Inline/Inline.Ruby.psx.ps1

@@ -0,0 +1,48 @@
+<#
+.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
+}