Mercurial > urweb
diff lib/ur/top.ur @ 1405:8631e9ed0ee8
queryXI and queryX1I
author | Adam Chlipala <adam@chlipala.net> |
---|---|
date | Thu, 20 Jan 2011 12:43:12 -0500 |
parents | d328983dc5a6 |
children | e8bea46f8eda |
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--- a/lib/ur/top.ur Thu Jan 20 10:40:40 2011 -0500 +++ b/lib/ur/top.ur Thu Jan 20 12:43:12 2011 -0500 @@ -255,6 +255,30 @@ (fn fs acc => return <xml>{acc}{f fs}</xml>) <xml/> +fun rev [a] (ls : list a) : list a = + let + fun rev' ls acc = + case ls of + [] => acc + | x :: ls => rev' ls (x :: acc) + in + rev' ls [] + end + +fun queryXI [tables ::: {{Type}}] [exps ::: {Type}] [ctx ::: {Unit}] [inp ::: {Type}] + [tables ~ exps] (q : sql_query [] [] tables exps) + (f : int -> $(exps ++ map (fn fields :: {Type} => $fields) tables) + -> xml ctx inp []) = + let + fun qxi ls i = + case ls of + [] => <xml/> + | x :: ls => <xml>{f i x}{qxi ls (i+1)}</xml> + in + ls <- queryL q; + return (qxi ls 0) + end + fun queryX1 [nm ::: Name] [fs ::: {Type}] [ctx ::: {Unit}] [inp ::: {Type}] (q : sql_query [] [] [nm = fs] []) (f : $fs -> xml ctx inp []) = @@ -262,6 +286,19 @@ (fn fs acc => return <xml>{acc}{f fs.nm}</xml>) <xml/> +fun queryX1I [nm ::: Name] [fs ::: {Type}] [ctx ::: {Unit}] [inp ::: {Type}] + (q : sql_query [] [] [nm = fs] []) + (f : int -> $fs -> xml ctx inp []) = + let + fun qx1i ls i = + case ls of + [] => <xml/> + | x :: ls => <xml>{f i x.nm}{qx1i ls (i+1)}</xml> + in + ls <- queryL q; + return (qx1i ls 0) + end + fun queryX' [tables ::: {{Type}}] [exps ::: {Type}] [ctx ::: {Unit}] [inp ::: {Type}] [tables ~ exps] (q : sql_query [] [] tables exps) (f : $(exps ++ map (fn fields :: {Type} => $fields) tables)