* http://cs.unibo.it/helm/.
*)
-(******************************************************************************)
-(* *)
-(* PROJECT HELM *)
-(* *)
-(* Ferruccio Guidi <fguidi@cs.unibo.it> *)
-(* 30/04/2002 *)
-(* *)
-(* *)
-(******************************************************************************)
-
-open MathQL
-
-(* string linearization of a reference *)
-
-let str_btoken = function
- | MQBC s -> s
- | MQBD -> "/"
- | MQBQ -> "?"
- | MQBS -> "*"
- | MQBSS -> "**"
-
-let str_ftoken = function
- | MQFC i -> "/" ^ string_of_int i
- | MQFS -> "/*"
- | MQFSS -> "/**"
-
-let str_prot = function
- | Some s -> s
- | None -> "*"
-
-let rec str_body = function
- | [] -> ""
- | head :: tail -> str_btoken head ^ str_body tail
-
-let str_frag l =
- let rec str_fi start = function
- | [] -> ""
- | t :: l ->
- (if start then "#1" else "") ^ str_ftoken t ^ str_fi false l
- in str_fi true l
-
-let str_tref (p, b, i) =
- str_prot p ^ ":/" ^ str_body b ^ str_frag i
-
-let str_uref (u, i) =
- let rec str_fi start = function
- | [] -> ""
- | i :: l ->
- (if start then "#1" else "") ^ string_of_int i ^ str_fi false l
- in UriManager.string_of_uri u ^ str_fi true i
-
-(* raw HTML representation *)
-
-let key s = "<font color=\"blue\">" ^ s ^ " </font>"
-
-let sym s = s ^ " "
-
-let sep s = s
-
-let str s = "<font color=\"red\">'" ^ s ^ "' </font>"
-
-let pat s = "<font color=\"red\">\"" ^ s ^ "\" </font>"
-
-let res s = "<font color=\"brown\">\"" ^ s ^ "\" </font>"
-
-let nl () = "<br>"
-
-let par () = "<p>"
-
-(* HTML representation of a query *)
-
-let out_rvar s = sym s
-
-let out_svar s = sep "$" ^ sym s
-
-let out_tref r = pat (str_tref r)
-
-let out_pat p = out_tref p
+(* AUTOR: Ferruccio Guidi <fguidi@cs.unibo.it>
+ *)
-let out_func = function
- | MQName -> key "name"
+(* time handling ***********************************************************)
-let out_str = function
- | MQCons s -> str s
- | MQRVar s -> out_rvar s
- | MQSVar s -> out_svar s
- | MQFunc (f, r) -> out_func f ^ out_rvar r
- | MQMConclusion -> key "mainconclusion"
- | MQConclusion -> key "conclusion"
+type time = float * float
-let rec out_bool = function
- | MQTrue -> key "true"
- | MQFalse -> key "false"
- | MQIs (s, t) -> out_str s ^ key "is" ^ out_str t
- | MQNot b -> key "not" ^ out_bool b
- | MQAnd (b1, b2) -> sep "(" ^ out_bool b1 ^ key "and" ^ out_bool b2 ^ sep ")"
- | MQOr (b1, b2) -> sep "(" ^ out_bool b1 ^ key "or" ^ out_bool b2 ^ sep ")"
+let start_time () =
+ (Sys.time (), Unix.time ())
-let rec out_list = function
- | MQSelect (r, l, b) ->
- key "select" ^ out_rvar r ^ key "in" ^ out_list l ^ key "where" ^ out_bool b
- | MQUse (l, v) -> key "use" ^ out_list l ^ key "position" ^ out_svar v
- | MQUsedBy (l, v) -> key "usedby" ^ out_list l ^ key "position" ^ out_svar v
- | MQPattern p -> key "pattern" ^ out_pat p
- | MQUnion (l1, l2) -> sep "(" ^ out_list l1 ^ key "union" ^ out_list l2 ^ sep ")"
- | MQIntersect (l1, l2) -> sep "(" ^ out_list l1 ^ key "intersect" ^ out_list l2 ^ sep ")"
-
-let out_query = function
- | MQList l -> out_list l
-
-(* HTML representation of a query result *)
-
-let rec out_list = function
- | [] -> ""
- | u :: l -> res u ^ nl () ^ out_list l
-
-let out_result qr =
- par () ^ "Result:" ^ nl () ^
- match qr with
- | MQRefs l -> out_list l
-
-(* Converting functions *)
-
-let tref_uref u =
- let s = str_uref u in
- MQueryTParser.ref MQueryTLexer.rtoken (Lexing.from_string s)
-
-let parse_text ch =
- let lexbuf = Lexing.from_channel ch in
- MQueryTParser.query MQueryTLexer.qtoken lexbuf
+let stop_time (s0, u0) =
+ let s1 = Sys.time () in
+ let u1 = Unix.time () in
+ Printf.sprintf "%.2fs,%.2fs" (s1 -. s0) (u1 -. u0)
+
+(* operations on lists *****************************************************)
+
+type 'a comparison = Lt
+ | Gt
+ | Eq of 'a
+
+let list_join f l1 l2 =
+ let rec aux = function
+ | [], v
+ | v, [] -> v
+ | ((h1 :: t1) as v1), ((h2 :: t2) as v2) -> begin
+ match f h1 h2 with
+ | Lt -> h1 :: aux (t1, v2)
+ | Gt -> h2 :: aux (v1, t2)
+ | Eq h -> h :: aux (t1, t2)
+ end
+ in aux (l1, l2)
+
+let list_meet f l1 l2 =
+ let rec aux = function
+ | [], v
+ | v, [] -> []
+ | ((h1 :: t1) as v1), ((h2 :: t2) as v2) -> begin
+ match f h1 h2 with
+ | Lt -> aux (t1, v2)
+ | Gt -> aux (v1, t2)
+ | Eq h -> h :: aux (t1, t2)
+ end
+ in aux (l1, l2)
+
+let rec flat_list out f s = function
+ | [] -> ()
+ | [a] -> f a
+ | a :: tail -> f a; out s; flat_list out f s tail
+
+let rec add_assoc ap = function
+ | [] -> [ap]
+ | head :: tail when fst head = fst ap -> ap :: tail
+ | head :: tail -> head :: add_assoc ap tail
projects / helm.git / blobdiff