Add unique variables and dot notation

backend/Builtin/Syntax.icl

@@ -496,13 +496,17 @@ bs_synonym_abstract =
 
 bs_unique =
 	{ syntax_title         = "uniqueness annotation"
-	, syntax_patterns      = ["\\*"]
-	, syntax_code          = ["*..."]
-	, syntax_description   = "Annotates a type to be unique."
+	, syntax_patterns      = ["\\*", "[", "]", "."]
+	, syntax_code          =
+		["*..."
+		,". ..." 
+		,"v ... | [v ..]" 
+	, syntax_description   = "Annotates a type with its uniqueness. A type can either be unique (`*`), not unique (not annotated), possibly unique (`.`) or relatively unique (identifier and `| [..]`). Note that when using unique types in a function or an ADT the container must also be unique. e.g. `T = T (Int, *File)` has to be `T = T *(Int, *File)`. Functions have to be split up into arity 1 and the sub functions need to be annotated as well. e.g. `T = T (Int *Int -> *Int)` has to be `T = T (Int -> *(*Int -> *Int))`."
 	, syntax_doc_locations = [CLR 11 "9.1" "_Toc311798093"]
 	, syntax_examples      = map EX
-		[ "Start :: *World -> *World"
-		, "copyArray :: *(a e) -> *(*a e, *a e) | Array a e"
+		[ "Start :: *World -> *World    //World is unique"
+		, "f :: .a -> .a                //f works on unique and non-unique values"
+		, "f :: v:a u:b -> u:b | [v<=u] //f works when a is less unique than b"
 		]
 	}