type int type float type string type unit = {} datatype bool = False | True (** SQL *) con sql_table :: {Type} -> Type (*** Queries *) con sql_query :: {{Type}} -> Type con sql_exp :: {{Type}} -> Type -> Type val sql_query : tables :: {({Type} * {Type})} -> {From : $(fold (fn nm => fn selected_unselected :: ({Type} * {Type}) => fn acc => [nm] ~ acc => selected_unselected.1 ~ selected_unselected.2 => [nm = sql_table (selected_unselected.1 ++ selected_unselected.2)] ++ acc) [] tables), Where : sql_exp (fold (fn nm => fn selected_unselected :: ({Type} * {Type}) => fn acc => [nm] ~ acc => selected_unselected.1 ~ selected_unselected.2 => [nm = selected_unselected.1 ++ selected_unselected.2] ++ acc) [] tables) bool} -> sql_query (fold (fn nm => fn selected_unselected :: ({Type} * {Type}) => fn acc => [nm] ~ acc => [nm = selected_unselected.1] ++ acc) [] tables) class sql_type val sql_bool : sql_type bool val sql_int : sql_type int val sql_float : sql_type float val sql_string : sql_type string val sql_inject : tables ::: {{Type}} -> t ::: Type -> t -> sql_type t -> sql_exp tables t (** XML *) con tag :: {Type} -> {Unit} -> {Unit} -> {Type} -> {Type} -> Type con xml :: {Unit} -> {Type} -> {Type} -> Type val cdata : ctx ::: {Unit} -> use ::: {Type} -> string -> xml ctx use [] val tag : attrsGiven ::: {Type} -> attrsAbsent ::: {Type} -> attrsGiven ~ attrsAbsent -> ctxOuter ::: {Unit} -> ctxInner ::: {Unit} -> useOuter ::: {Type} -> useInner ::: {Type} -> useOuter ~ useInner -> bindOuter ::: {Type} -> bindInner ::: {Type} -> bindOuter ~ bindInner -> $attrsGiven -> tag (attrsGiven ++ attrsAbsent) ctxOuter ctxInner useOuter bindOuter -> xml ctxInner useInner bindInner -> xml ctxOuter (useOuter ++ useInner) (bindOuter ++ bindInner) val join : ctx ::: {Unit} -> use1 ::: {Type} -> bind1 ::: {Type} -> bind2 ::: {Type} -> use1 ~ bind1 -> bind1 ~ bind2 -> xml ctx use1 bind1 -> xml ctx (use1 ++ bind1) bind2 -> xml ctx use1 (bind1 ++ bind2) val useMore : ctx ::: {Unit} -> use1 ::: {Type} -> use2 ::: {Type} -> bind ::: {Type} -> use1 ~ use2 -> xml ctx use1 bind -> xml ctx (use1 ++ use2) bind con xhtml = xml [Html] con page = xhtml [] [] (*** HTML details *) con html = [Html] con head = [Head] con body = [Body] con lform = [Body, LForm] val head : unit -> tag [] html head [] [] val title : unit -> tag [] head [] [] [] val body : unit -> tag [] html body [] [] con bodyTag = fn attrs :: {Type} => ctx ::: {Unit} -> [Body] ~ ctx -> unit -> tag attrs ([Body] ++ ctx) ([Body] ++ ctx) [] [] con bodyTagStandalone = fn attrs :: {Type} => ctx ::: {Unit} -> [Body] ~ ctx -> unit -> tag attrs ([Body] ++ ctx) [] [] [] val br : bodyTagStandalone [] val p : bodyTag [] val b : bodyTag [] val i : bodyTag [] val font : bodyTag [Size = int, Face = string] val h1 : bodyTag [] val li : bodyTag [] val a : bodyTag [Link = page] val lform : ctx ::: {Unit} -> [Body] ~ ctx -> bind ::: {Type} -> xml lform [] bind -> xml ([Body] ++ ctx) [] [] con lformTag = fn ty :: Type => fn inner :: {Unit} => fn attrs :: {Type} => ctx ::: {Unit} -> [LForm] ~ ctx -> nm :: Name -> unit -> tag attrs ([LForm] ++ ctx) inner [] [nm = ty] val textbox : lformTag string [] [] val password : lformTag string [] [] val ltextarea : lformTag string [] [] val checkbox : lformTag bool [] [] con radio = [Body, Radio] val radio : lformTag string radio [] val radioOption : unit -> tag [Value = string] radio [] [] [] con select = [Select] val lselect : lformTag string select [] val loption : unit -> tag [Value = string] select [] [] [] val submit : ctx ::: {Unit} -> [LForm] ~ ctx -> use ::: {Type} -> unit -> tag [Action = $use -> page] ([LForm] ++ ctx) ([LForm] ++ ctx) use []