Mercurial > urweb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/gformText.lac	Thu Jul 24 10:26:18 2008 -0400
@@ -0,0 +1,50 @@
+con stringify = fold (fn nm :: Name => fn u :: Unit => fn t :: {Type} => [nm = string] ++ t) []
+
+signature S = sig
+        con rs :: {Unit}
+        val names : $(stringify rs)
+end
+
+signature S' = sig
+        con rs :: {Unit}
+
+        val handler : $(stringify rs) -> page
+        val page : unit -> page
+end
+
+functor F (M : S) : S' where con rs = M.rs = struct
+        con rs = M.rs
+
+        val handler = fn x : $(stringify M.rs) => <html><body>
+                {fold [fn rs :: {Unit} => $(stringify rs) -> $(stringify rs) -> xml body [] []]
+                        (fn nm :: Name => fn u :: Unit => fn rest :: {Unit} =>
+                                fn f : $(stringify rest) -> $(stringify rest) -> xml body [] [] =>
+                                fn names : $(stringify ([nm] ++ rest)) =>
+                                fn x : $(stringify ([nm] ++ rest)) =>
+                                        <body><li> {cdata names.nm}: {cdata x.nm}</li> {f (names -- nm) (x -- nm)}</body>)
+                        (fn names => fn x => <body></body>)
+                        [M.rs] M.names x}
+        </body></html>
+
+        val page = fn () => <html><body>
+                <lform>
+                        {fold [fn rs :: {Unit} => xml lform [] (stringify rs)]
+                                (fn nm :: Name => fn u :: Unit => fn rest :: {Unit} =>
+                                        fn frag : xml lform [] (stringify rest) =>
+                                                <lform><li> <textbox{nm}/></li> {useMore frag}</lform>)
+                                <lform></lform>
+                                [rs]}
+
+                        <submit action={handler}/>
+                </lform>
+        </body></html>
+end
+
+structure M = F(struct
+        con rs = [A, B, C]
+
+        val names = {A = "A", B = "B", C = "C"}
+end)
+
+open M
+