feat: Porting Rust Template Transpiler to Language Function (Fixes #623)

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

@@ -0,0 +1,21 @@
+Language function Rust {
+    <#
+    .SYNOPSIS
+        Rust Language Definition
+    .DESCRIPTION
+        Defines Rust within PipeScript.
+
+        This allows Rust to be templated.
+    #>
+    [ValidatePattern('\.rs$')]
+    param()
+
+    # We start off by declaring a number of regular expressions:
+    $startComment = '/\*' # * Start Comments ```\*```
+    $endComment   = '\*/' # * End Comments   ```/*```
+    $Whitespace   = '[\s\n\r]{0,}'
+    # * StartRegex     ```$IgnoredContext + $StartComment + '{' + $Whitespace```
+    $startRegex = "(?<PSStart>${startComment}\{$Whitespace)"
+    # * EndRegex       ```$whitespace + '}' + $EndComment + $ignoredContext```
+    $endRegex   = "(?<PSEnd>$Whitespace\}${endComment})"    
+}