feat: Porting Razor Template to Language Function (Fixes #620)

Commands/Languages/Razor/Razor-Language.ps.ps1

@@ -0,0 +1,28 @@
+Language function Razor {
+<#
+.SYNOPSIS
+    Razor Template Transpiler.    
+.DESCRIPTION
+    Allows PipeScript to generate Razor.
+
+    Multiline comments blocks like this ```<!--{}-->``` will be treated as blocks of PipeScript.
+
+    JavaScript/CSS comment blocks like ```/*{}*/``` will also be treated as blocks of PipeScript.
+
+    Razor comment blocks like ```@*{}*@``` will also be treated as blocks of PipeScript.
+#>
+[ValidatePattern('\.(cshtml|razor)$')]
+param(
+)
+
+
+    # We start off by declaring a number of regular expressions:
+    $startComment = '(?><\!--|/\*|\@\*)' 
+    $endComment   = '(?>-->|\*/|\*@)'
+    $Whitespace   = '[\s\n\r]{0,}'
+    # * StartPattern     ```$StartComment + '{' + $Whitespace```
+    $startPattern = "(?<PSStart>${startComment}\{$Whitespace)"
+    # * EndPattern       ```$whitespace + '}' + $EndComment```
+    $endPattern   = "(?<PSEnd>$Whitespace\}${endComment}\s{0,})"
+
+}