feat: Conf Language Definition ( Fixes #864 )

Author: James Brundage

Languages/Conf/Conf-Language.ps.ps1

@@ -0,0 +1,31 @@
+Language function Conf {
+    <#
+    .SYNOPSIS
+        Conf PipeScript Language Definition
+    .DESCRIPTION
+        Allows PipeScript to generate conf files    
+    #>
+    [ValidatePattern('\.conf$')]
+    param()
+
+    $FilePattern = '\.conf'
+
+    # Conf supports single line comments only.  They start with `;` or `#`
+    $SingleLineCommentStart = "[;#]"
+    
+    # Any Language can be parsed with a series of regular expresssions.
+    # For languages that only support single comments:
+    # * The capture group IsSingleLine must be defined.
+    # * Whitespace should not be allowed (it makes nested blocks hard to end)
+    $startComment = "(?>(?<IsSingleLine>$SingleLineCommentStart)(?>PipeScript|PS)?\{)"
+    $endComment   = "(?>$SingleLineCommentStart(?:PipeScript)?\})"
+
+    # To support templates, a language has to declare `$StartPattern` and `$EndPattern`:
+    $StartPattern = "(?<PSStart>${startComment})"
+    $EndPattern   = "(?<PSEnd>${endComment})"
+
+    # Conf files are a data language
+    $DataLanguage = $true
+    # and are generally case sensitive.
+    $CaseSensitive = $true
+}