Added XML format outputter

lib/tools/parse.nom

@@ -37,6 +37,23 @@ use "commandline"
                     else:
                         say "\$indent  \(quote $arg)"
 
+($ as xml) means:
+    when (type of $) is:
+        "a Syntax Tree":
+            $body = ([: for $bit in $: add ($bit as xml)], joined with " ")
+            if ($.type == "Action"):
+                return ("
+                    <Action name="\(($, get stub) as xml)">\$body</Action>
+                ")
+            ..else:
+                return ("
+                    <\($.type)>\$body</\($.type)>
+                ")
+        "Text":
+            return ($, with "&" -> "&amp;", with "\"" -> "&quot;", with "'" -> "&apos;", with "<" -> "&lt;", with ">" -> "&gt;")
+        else:
+            return "\$"
+
 command line program with $args:
     for $filename in $args.extras:
         $file = (read file $filename)
@@ -44,4 +61,7 @@ command line program with $args:
             fail "File does not exist: \$filename"
         $nomsu = (NomsuCode from (Source $filename 1 (size of $file)) $file)
         $tree = ($nomsu parsed)
-        print tree $tree at indent ""
+        if ($args.x or $args.xml):
+            say ($tree as xml)
+        ..else:
+            print tree $tree at indent ""