-let text_of_query out x sep =
- let module M = MathQL in
- let txt_inv i = if i then out "inverse " in
- let txt_ref = function
- | M.RefineExact -> ()
- | M.RefineSub -> out "sub "
- | M.RefineSuper -> out "super "
- in
- let txt_refpath i r p = txt_inv i; txt_ref r; txt_path out p; out " " in
- let txt_assign (pl, pr) = txt_vvar out (fst pl); out " <- "; txt_path out pr in
- let rec txt_val = function
- | M.Const [s] -> txt_str out s
- | M.Const l -> out "{"; txt_list out (txt_str out) ", " l; out "}"
- | M.VVar vv -> txt_vvar out vv
- | M.Record (rv, p) -> txt_rvar out rv; out "."; txt_vvar out (fst p)
- | M.Fun (s, x) -> out "fun "; txt_str out s; out " "; txt_val x
- | M.Property (i, r, p, x) -> out "property "; txt_refpath i r p; txt_val x
- | M.RefOf x -> out "refof "; txt_set x
- and txt_boole = function
- | M.False -> out "false"
- | M.True -> out "true"
- | M.Ex b x -> out "ex "; txt_boole x
-(* | M.Ex b x -> "ex [" ^ txt_list txt_rvar "," b ^ "] " ^ txt_boole x
-*) | M.Not x -> out "not "; txt_boole x
- | M.And (x, y) -> out "("; txt_boole x; out " and "; txt_boole y; out ")"
- | M.Or (x, y) -> out "("; txt_boole x; out " or "; txt_boole y; out ")"
- | M.Sub (x, y) -> out "("; txt_val x; out " sub "; txt_val y; out ")"
- | M.Meet (x, y) -> out "("; txt_val x; out " meet "; txt_val y; out ")"
- | M.Eq (x, y) -> out "("; txt_val x; out " eq "; txt_val y; out ")"
- and txt_set = function
- | M.SVar sv -> txt_svar out sv
- | M.RVar rv -> txt_rvar out rv
- | M.Relation (i, r, p, M.Ref x, []) -> out "relation "; txt_refpath i r p; txt_val x
- | M.Relation (i, r, p, M.Ref x, l) -> out "relation "; txt_refpath i r p; txt_val x; out " attr "; txt_list out txt_assign ", " l
- | M.Union (x, y) -> out "("; txt_set x; out " union "; txt_set y; out ")"
- | M.Intersect (x, y) -> out "("; txt_set x; out " intersect "; txt_set y; out ")"
- | M.Diff (x, y) -> out "("; txt_set x; out " diff "; txt_set y; out ")"
- | M.LetSVar (sv, x, y) -> out "let "; txt_svar out sv; out " be "; txt_set x; out " in "; txt_set y
- | M.LetVVar (vv, x, y) -> out "let "; txt_vvar out vv; out " be "; txt_val x; out " in "; txt_set y
- | M.Select (rv, x, y) -> out "select "; txt_rvar out rv; out " in "; txt_set x; out " where "; txt_boole y
- | M.Pattern x -> out "pattern "; txt_val x
- | M.Ref x -> out "ref "; txt_val x
- | _ -> assert false
- in
- txt_set x; out sep