X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Furimanager%2FuriManager.ml;h=b8da7d91eddec50f086251bf863da6df40f99e66;hb=9f8a383035b272c628c555b728e84caf9229cd57;hp=39d058b5e54c0f749a7606150f6ddfc004eb7d73;hpb=10be44e671c08f7673f6bbb00759639714841b75;p=helm.git diff --git a/helm/ocaml/urimanager/uriManager.ml b/helm/ocaml/urimanager/uriManager.ml index 39d058b5e..b8da7d91e 100644 --- a/helm/ocaml/urimanager/uriManager.ml +++ b/helm/ocaml/urimanager/uriManager.ml @@ -23,17 +23,43 @@ * http://cs.unibo.it/helm/. *) -(* "cic:/a/b/c.con" => [| "cic:/a" ; "cic:/a/b" ; "cic:/a/b/c.con" ; "c" |] *) -type uri = string array;; +(* + * "cic:/a/b/c.con" => ("cic:/a/b/c.con", id ) + * "cic:/a/b/c.ind#xpointer(1/1)" => ("cic:/a/b/c.con#xpointer(1/1)", id) + * "cic:/a/b/c.ind#xpointer(1/1/1)" => ("cic:/a/b/c.con#xpointer(1/1/1)", id) + *) + +let fresh_id = + let id = ref 0 in + function () -> + incr id; + !id + +(* (uriwithxpointer, uniqueid) + * where uniqueid is used to build a set of uri *) +type uri = string * int;; let eq uri1 uri2 = - uri1 == uri2 + uri1 == uri2 ;; -let string_of_uri uri = uri.(Array.length uri - 2);; -let name_of_uri uri = uri.(Array.length uri - 1);; -let buri_of_uri uri = uri.(Array.length uri - 3);; -let depth_of_uri uri = Array.length uri - 2;; +let string_of_uri (uri,_) = + uri + +let name_of_uri (uri, _) = + let xpointer_offset = + try String.rindex uri '#' with Not_found -> String.length uri - 1 + in + let index1 = String.rindex_from uri xpointer_offset '/' + 1 in + let index2 = String.rindex uri '.' in + String.sub uri index1 (index2 - index1) + +let buri_of_uri (uri,_) = + let xpointer_offset = + try String.rindex uri '#' with Not_found -> String.length uri - 1 + in + let index = String.rindex_from uri xpointer_offset '/' in + String.sub uri 0 index module OrderedStrings = struct @@ -42,99 +68,99 @@ module OrderedStrings = end ;; -module SetOfStrings = Map.Make(OrderedStrings);; - -(*CSC: commento obsoleto ed errato *) -(* Invariant: the map is the identity function, *) -(* i.e. (SetOfStrings.find str !set_of_uri) == str *) -let set_of_uri = ref SetOfStrings.empty;; -let set_of_prefixes = ref SetOfStrings.empty;; - -(* similar to uri_of_string, but used for prefixes of uris *) -let normalize prefix = - try - SetOfStrings.find prefix !set_of_prefixes - with - Not_found -> - set_of_prefixes := SetOfStrings.add prefix prefix !set_of_prefixes ; - prefix -;; +module MapStringsToUri = Map.Make(OrderedStrings);; + +(* Invariant: the map is the identity function, + * i.e. + * let str' = (MapStringsToUri.find str !set_of_uri) in + * str' == (MapStringsToUri.find str' !set_of_uri) + *) +let set_of_uri = ref MapStringsToUri.empty;; + +(* hash conses an uri *) +let uri_of_string suri = + try + MapStringsToUri.find suri !set_of_uri + with Not_found -> + let new_uri = suri, fresh_id () in + set_of_uri := MapStringsToUri.add suri new_uri !set_of_uri; + new_uri exception IllFormedUri of string;; -let mk_prefixes str = - let rec aux curi = - function - [he] -> - let prefix_uri = curi ^ "/" ^ he - and name = List.hd (Str.split (Str.regexp "\\.") he) in - [ normalize prefix_uri ; name ] - | he::tl -> - let prefix_uri = curi ^ "/" ^ he in - (normalize prefix_uri)::(aux prefix_uri tl) - | _ -> raise (IllFormedUri str) - in - let tokens = (Str.split (Str.regexp "/") str) in - (* ty = "cic:" *) - let (ty, sp) = - (try (List.hd tokens, List.tl tokens) - with Failure "hd" | Failure "tl" -> - raise (IllFormedUri str)) - in - aux ty sp -;; +let strip_xpointer ((uri,_) as olduri) = + try + let index = String.rindex uri '#' in + let no_xpointer = String.sub uri 0 index in + uri_of_string no_xpointer + with + Not_found -> olduri -let uri_of_string str = - try - SetOfStrings.find str !set_of_uri - with - Not_found -> - let uri = Array.of_list (mk_prefixes str) in - set_of_uri := SetOfStrings.add str uri !set_of_uri ; - uri -;; +let clear_suffix uri ?(pat2="",0) pat1 = + try + let index = String.rindex uri '.' in + let index' = index + 1 in + let suffix = String.sub uri index' (String.length uri - index') in + if fst pat1 = suffix || fst pat2 = suffix then + String.sub uri 0 index + else + uri + with + Not_found -> assert false -let cicuri_of_uri uri = - let completeuri = string_of_uri uri in - let newcompleteuri = - (Str.replace_first (Str.regexp "\\.types$") "" - (Str.replace_first (Str.regexp "\\.ann$") "" completeuri)) - in - if completeuri = newcompleteuri then - uri - else - let newuri = Array.copy uri in - newuri.(Array.length uri - 2) <- newcompleteuri ; - newuri -;; +let has_suffix uri (pat,n) = + try + let suffix = String.sub uri (String.length uri - n) n in + pat = suffix + with + Not_found -> assert false -let annuri_of_uri uri = - let completeuri = string_of_uri uri in - if Str.string_match (Str.regexp ".*\\.ann$") completeuri 0 then - uri - else - let newuri = Array.copy uri in - newuri.(Array.length uri - 2) <- completeuri ^ ".ann" ; - newuri -;; +let _dottypes = ".types" +let _types = "types",5 +let _ann = "ann",3 +let _dotann = ".ann" +let _var = "var",3 +let _dotbody = ".body" +let _con = "con",3 +let _xpointer = "#xpointer(1/" + +let cicuri_of_uri (uri, _) = uri_of_string (clear_suffix uri ~pat2:_types _ann) -let uri_is_annuri uri = - Str.string_match (Str.regexp ".*\\.ann$") (string_of_uri uri) 0 -;; +let annuri_of_uri (uri , _) = uri_of_string ((clear_suffix uri _ann) ^ _dotann) + +let uri_is_annuri (uri, _) = has_suffix uri _ann + +let uri_is_var (uri, _) = has_suffix uri _var + +let uri_is_con (uri, _) = has_suffix uri _con -let bodyuri_of_uri uri = - let struri = string_of_uri uri in - if Str.string_match (Str.regexp ".*\\.con$") (string_of_uri uri) 0 then - let newuri = Array.copy uri in - newuri.(Array.length uri - 2) <- struri ^ ".body" ; - Some newuri +let bodyuri_of_uri (uri, _) = + if has_suffix uri _con then + Some (uri_of_string (uri ^ _dotbody)) else - None + None ;; -let innertypesuri_of_uri uri = - let cicuri = cicuri_of_uri uri in - let newuri = Array.copy cicuri in - newuri.(Array.length cicuri - 2) <- (string_of_uri cicuri) ^ ".types" ; - newuri +let innertypesuri_of_uri (uri, _) = + uri_of_string ((clear_suffix uri _types) ^ _dottypes) ;; + +let uri_of_uriref (uri, _) typeno consno = + let typeno = typeno + 1 in + let suri = + match consno with + | None -> Printf.sprintf "%s%s%d)" uri _xpointer typeno + | Some n -> Printf.sprintf "%s%s%d/%d)" uri _xpointer typeno n + in + uri_of_string suri + +let compare (_,id1) (_,id2) = id1 - id2 + +module OrderedUri = +struct + type t = uri + let compare = compare (* the one above, not Pervasives.compare *) +end + +module UriSet = Set.Make (OrderedUri) +