(******************************************************************************)
INCLUDE "utils.ml"
+
+external init_lib : unit -> unit = "caml_init_lib"
+
+exception CPlusPlusError of string
+
+let () = Callback.register_exception "CPlusPlusError" (CPlusPlusError "")
+
+let () = init_lib ()
+
+
type tree
-type 'a node = int
+type 'a node = private int
type node_kind = [`Text | `Tree ]
-
-let compare_node : 'a node -> 'a node -> int = (-)
+
+type t = {
+ doc : tree;
+ children : Ptset.Int.t array;
+ siblings : Ptset.Int.t array;
+ descendants: Ptset.Int.t array;
+ followings: Ptset.Int.t array;
+}
+
+external inode : 'a node -> int = "%identity"
+external nodei : int -> 'a node = "%identity"
+let compare_node x y = (inode x) - (inode y)
let equal_node : 'a node -> 'a node -> bool = (==)
-
-(* abstract type, values are pointers to a XMLTree C++ object *)
-external int_of_node : 'a node -> int = "%identity"
-
-external parse_xml_uri : string -> int -> bool -> bool -> tree = "caml_call_shredder_uri"
+
+external parse_xml_uri : string -> int -> bool -> bool -> tree = "caml_call_shredder_uri"
external parse_xml_string : string -> int -> bool -> bool -> tree = "caml_call_shredder_string"
-
-external save_tree : tree -> string -> unit = "caml_xml_tree_save"
-external load_tree : string -> int -> tree = "caml_xml_tree_load"
-
+external tree_print_xml_fast3 : tree -> [`Tree ] node -> Unix.file_descr ->unit = "caml_xml_tree_print"
+external tree_save : tree -> Unix.file_descr -> string -> unit = "caml_xml_tree_save"
+external tree_load : Unix.file_descr -> string -> bool -> int -> tree = "caml_xml_tree_load"
+
external nullt : unit -> 'a node = "caml_xml_tree_nullt"
-let nil : 'a node = Obj.magic (-1)
+let nil : [`Tree ] node = nodei ~-1
+let nulldoc : [`Text ] node = nodei ~-1
+let root : [`Tree ] node = nodei 0
-external text_get_tc_text : tree -> [`Text] node -> string = "caml_text_collection_get_text"
-
-external text_is_empty : tree -> [`Text ] node -> bool = "caml_text_collection_empty_text"
+external text_get_text : tree -> [`Text] node -> string = "caml_text_collection_get_text"
+external text_is_empty : tree -> [`Text ] node -> bool = "caml_text_collection_empty_text"
-let text_is_empty t n =
- (equal_node nil n) || text_is_empty t n
-
+let text_is_empty t n = (equal_node nulldoc n) || text_is_empty t n
+external text_is_prefix : tree -> string -> bool = "caml_text_collection_is_prefix"
+external text_is_suffix : tree -> string -> bool = "caml_text_collection_is_suffix"
+external text_is_equal : tree -> string -> bool = "caml_text_collection_is_equal"
+external text_is_contains : tree -> string -> bool = "caml_text_collection_is_contains"
+external text_is_lessthan : tree -> string -> bool = "caml_text_collection_is_lessthan"
-external text_is_contains : tree -> string -> bool = "caml_text_collection_is_contains"
-external text_count_contains : tree -> string -> int = "caml_text_collection_count_contains"
-external text_count : tree -> string -> int = "caml_text_collection_count"
-external text_contains : tree -> string -> [`Text ] node array = "caml_text_collection_contains"
-external text_unsorted_contains : tree -> string -> unit = "caml_text_collection_unsorted_contains"
-external text_get_cached_text : tree -> [`Text] node -> string = "caml_text_collection_get_cached_text"
+external text_count : tree -> string -> int = "caml_text_collection_count"
+external text_count_prefix : tree -> string -> int = "caml_text_collection_count_prefix"
+external text_count_suffix : tree -> string -> int = "caml_text_collection_count_suffix"
+external text_count_equal : tree -> string -> int = "caml_text_collection_count_equal"
+external text_count_contains : tree -> string -> int = "caml_text_collection_count_contains"
+external text_count_lessthan : tree -> string -> int = "caml_text_collection_count_lessthan"
+external text_prefix : tree -> string -> [`Text ] node array = "caml_text_collection_prefix"
+external text_suffix : tree -> string -> [`Text ] node array = "caml_text_collection_suffix"
+external text_equals : tree -> string -> [`Text ] node array = "caml_text_collection_equals"
+external text_contains : tree -> string -> [`Text ] node array = "caml_text_collection_contains"
+external text_lessthan : tree -> string -> [`Text ] node array = "caml_text_collection_lessthan"
-external tree_serialize : tree -> string -> unit = "caml_xml_tree_serialize"
-external tree_unserialize : string -> tree = "caml_xml_tree_unserialize"
-
-external tree_root : tree -> [`Tree] node = "caml_xml_tree_root"
+external tree_root : tree -> [`Tree] node = "caml_xml_tree_root" "noalloc"
+external tree_size : tree -> int = "caml_xml_tree_size" "noalloc"
+external tree_num_tags : tree -> int = "caml_xml_tree_num_tags" "noalloc"
+external tree_subtree_size : tree -> [`Tree] node -> int = "caml_xml_tree_subtree_size" "noalloc"
+external tree_subtree_elements : tree -> [`Tree] node -> int = "caml_xml_tree_subtree_elements" "noalloc"
+external tree_subtree_tags : tree -> [`Tree] node -> Tag.t -> int = "caml_xml_tree_subtree_elements" "noalloc"
let tree_is_nil x = equal_node x nil
+external tree_is_leaf : tree -> [`Tree ] node -> bool = "caml_xml_tree_is_leaf" "noalloc"
+external tree_is_ancestor : tree -> [`Tree ] node -> [`Tree ] node -> bool = "caml_xml_tree_is_ancestor" "noalloc"
+external tree_is_child : tree -> [`Tree ] node -> [`Tree ] node -> bool = "caml_xml_tree_is_child" "noalloc"
+external tree_is_first_child : tree -> [`Tree ] node -> bool = "caml_xml_tree_is_first_child" "noalloc"
+external tree_num_children : tree -> [`Tree ] node -> int = "caml_xml_tree_num_children" "noalloc"
+external tree_child_number : tree -> [`Tree ] node -> int = "caml_xml_tree_child_number" "noalloc"
+external tree_depth : tree -> [`Tree ] node -> int = "caml_xml_tree_depth" "noalloc"
+external tree_preorder : tree -> [`Tree ] node -> int = "caml_xml_tree_preorder" "noalloc"
+external tree_postorder : tree -> [`Tree ] node -> int = "caml_xml_tree_postorder" "noalloc"
+external tree_tag : tree -> [`Tree ] node -> Tag.t = "caml_xml_tree_tag" "noalloc"
+external tree_doc_ids : tree -> [`Tree ] node -> [`Text] node*[`Text] node = "caml_xml_tree_doc_ids"
+
+external tree_parent : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_parent" "noalloc"
+external tree_child : tree -> [`Tree] node -> int -> [`Tree] node = "caml_xml_tree_child" "noalloc"
+external tree_first_child : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_first_child" "noalloc"
+external tree_first_element : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_first_element" "noalloc"
+external tree_last_child : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_last_child" "noalloc"
+external tree_next_sibling : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_next_sibling" "noalloc"
+external tree_next_element : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_next_element" "noalloc"
+external tree_prev_sibling : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_prev_sibling" "noalloc"
+external tree_tagged_child : tree -> [`Tree] node -> Tag.t -> [`Tree] node = "caml_xml_tree_tagged_child" "noalloc"
+
+type unordered_set
+external unordered_set_alloc : int -> unordered_set = "caml_unordered_set_alloc"
+external unordered_set_length : unordered_set -> int = "caml_unordered_set_length"
+external unordered_set_insert : unordered_set -> int -> unit = "caml_unordered_set_set" "noalloc"
+
+external tree_select_child : tree -> [`Tree ] node -> unordered_set -> [`Tree] node = "caml_xml_tree_select_child" "noalloc"
+external tree_tagged_following_sibling : tree -> [`Tree] node -> Tag.t -> [`Tree] node = "caml_xml_tree_tagged_following_sibling" "noalloc"
+external tree_select_following_sibling : tree -> [`Tree ] node -> unordered_set -> [`Tree] node = "caml_xml_tree_select_following_sibling" "noalloc"
+external tree_tagged_descendant : tree -> [`Tree ] node -> Tag.t -> [`Tree ] node = "caml_xml_tree_tagged_descendant" "noalloc"
+external tree_select_descendant : tree -> [`Tree ] node -> unordered_set -> [`Tree] node = "caml_xml_tree_select_descendant" "noalloc"
+external tree_tagged_following : tree -> [`Tree ] node -> Tag.t -> [`Tree ] node = "caml_xml_tree_tagged_following" "noalloc"
+external tree_tagged_following_below : tree -> [`Tree ] node -> Tag.t -> [`Tree ] node -> [`Tree ] node = "caml_xml_tree_tagged_following_below" "noalloc"
+external tree_select_following_below : tree -> [`Tree ] node -> unordered_set -> [`Tree] node -> [`Tree] node = "caml_xml_tree_select_following_below" "noalloc"
+
-external tree_parent : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_parent"
-external tree_parent_doc : tree -> [`Text ] node -> [`Tree ] node = "caml_xml_tree_parent_doc"
-external tree_prev_doc : tree -> [`Text ] node -> [`Tree ] node = "caml_xml_tree_prev_doc"
-external tree_first_child : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_first_child"
-external tree_tagged_child : tree -> [`Tree] node -> Tag.t -> [`Tree] node = "caml_xml_tree_tagged_child"
-external tree_next_sibling : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_next_sibling"
-external tree_tagged_sibling : tree -> [`Tree] node -> Tag.t -> [`Tree] node = "caml_xml_tree_tagged_sibling"
+external tree_tagged_following_before : tree -> [`Tree ] node -> Tag.t -> [`Tree ] node -> [`Tree ] node = "caml_xml_tree_tagged_following_before" "noalloc"
+external tree_select_following_below : tree -> [`Tree ] node -> unordered_set -> [`Tree] node -> [`Tree] node = "caml_xml_tree_select_following_before" "noalloc"
-external tree_prev_sibling : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_prev_sibling"
-external tree_is_leaf : tree -> [`Tree] node -> bool = "caml_xml_tree_is_leaf"
-external tree_last_child : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_last_child"
-external tree_is_first_child : tree -> [`Tree] node -> bool = "caml_xml_tree_is_first_child"
+external tree_my_text : tree -> [`Tree ] node -> [`Text] node = "caml_xml_tree_my_text" "noalloc"
+external tree_my_text_unsafe : tree -> [`Tree ] node -> [`Text] node = "caml_xml_tree_my_text_unsafe" "noalloc"
+external tree_text_xml_id : tree -> [`Text ] node -> int = "caml_xml_tree_text_xml_id" "noalloc"
+external tree_node_xml_id : tree -> [`Tree ] node -> int = "caml_xml_tree_node_xml_id" "noalloc"
-(* external tag : tree -> [`Tree ] node -> T = "caml_xml_tree_tag"*)
-external tree_tag_id : tree -> [`Tree ] node -> Tag.t = "caml_xml_tree_tag_id"
-
+external tree_parent_node : tree -> [`Text ] node -> [`Tree ] node = "caml_xml_tree_parent_node" "noalloc"
-let tree_is_last t n = equal_node nil (tree_next_sibling t n)
-
-external tree_prev_text : tree -> [`Tree] node -> [`Text ] node = "caml_xml_tree_prev_text"
+(*external tree_prev_doc : tree -> [`Text ] node -> [`Tree ] node = "caml_xml_tree_prev_doc" "noalloc" *)
-external tree_my_text : tree -> [`Tree] node -> [`Text ] node = "caml_xml_tree_my_text"
-external tree_next_text : tree -> [`Tree] node -> [`Text ] node = "caml_xml_tree_next_text"
-external tree_doc_ids : tree -> [`Tree ] node -> [`Text ] node * [`Text ] node = "caml_xml_tree_doc_ids"
+external tree_closing : tree -> [`Tree] node -> [`Tree] node = "caml_xml_tree_closing" "noalloc"
+external tree_is_open : tree -> [`Tree] node -> bool = "caml_xml_tree_is_open" "noalloc"
-let text_size tree = int_of_node (snd ( tree_doc_ids tree (Obj.magic 0) ))
-let text_get_cached_text t x =
- if x == -1 then ""
- else
- text_get_cached_text t x
+external benchmark_jump : tree -> Tag.t -> int = "caml_benchmark_jump" "noalloc"
+let benchmark_jump t s = benchmark_jump t.doc s
-external tree_text_xml_id : tree -> [`Text ] node -> int = "caml_xml_tree_text_xml_id"
-external tree_node_xml_id : tree -> [`Tree ] node -> int = "caml_xml_tree_node_xml_id"
-external tree_is_ancestor : tree -> [`Tree ] node -> [`Tree ] node -> bool = "caml_xml_tree_is_ancestor"
-external tree_tagged_desc : tree -> [`Tree ] node -> Tag.t -> [`Tree ] node = "caml_xml_tree_tagged_desc"
-external tree_tagged_foll_below : tree -> [`Tree ] node -> Tag.t -> [`Tree ] node -> [`Tree ] node = "caml_xml_tree_tagged_foll_below"
-external tree_subtree_tags : tree -> [`Tree ] node -> Tag.t -> int = "caml_xml_tree_subtree_tags"
+external benchmark_fcns : tree -> int = "caml_benchmark_fcns" "noalloc"
+external benchmark_fene : tree -> int = "caml_benchmark_fene" "noalloc"
+external benchmark_iter : tree -> int = "caml_benchmark_iter" "noalloc"
+let benchmark_fcns t = benchmark_fcns t.doc
+let benchmark_fene t = benchmark_fene t.doc
+
+let benchmark_iter t = benchmark_iter t.doc
+
+external benchmark_lcps : tree -> unit = "caml_benchmark_lcps" "noalloc"
+
+let benchmark_lcps t = benchmark_lcps t.doc
+
+
+
+
+
+
+
+let text_size tree = inode (snd ( tree_doc_ids tree root ))
+
+let text_get_text t (x:[`Text] node) =
+ if x == nulldoc then ""
+ else text_get_text t x
-type int_vector
-external int_vector_alloc : int -> int_vector = "caml_int_vector_alloc"
-external int_vector_length : int_vector -> int = "caml_int_vector_length"
-external int_vector_set : int_vector -> int -> int -> unit = "caml_int_vector_set"
-external tree_select_child : tree -> [`Tree ] node -> int_vector -> [`Tree] node = "caml_xml_tree_select_child"
-external tree_select_foll_sibling : tree -> [`Tree ] node -> int_vector -> [`Tree] node = "caml_xml_tree_select_foll_sibling"
-external tree_select_desc : tree -> [`Tree ] node -> int_vector -> [`Tree] node = "caml_xml_tree_select_desc"
-external tree_select_foll_below : tree -> [`Tree ] node -> int_vector -> [`Tree] node -> [`Tree] node = "caml_xml_tree_select_foll_below"
module HPtset = Hashtbl.Make(Ptset.Int)
let vector_htbl = HPtset.create MED_H_SIZE
let ptset_to_vector s =
- try
+ try
HPtset.find vector_htbl s
with
Not_found ->
- let v = int_vector_alloc (Ptset.Int.cardinal s) in
- let _ = Ptset.Int.fold (fun e i -> int_vector_set v i e;i+1) s 0 in
+ let v = unordered_set_alloc (Ptset.Int.cardinal s) in
+ let _ = Ptset.Int.iter (fun e -> unordered_set_insert v e) s in
HPtset.add vector_htbl s v; v
-
-type t = { doc : tree;
- node : [`Tree] node;
- ttable : (Tag.t,(Ptset.Int.t*Ptset.Int.t)) Hashtbl.t;
- }
+
+let subtree_size t i = tree_subtree_size t.doc i
+let subtree_elements t i = tree_subtree_elements t.doc i
let text_size t = text_size t.doc
-module MemUnion = Hashtbl.Make (struct
- type t = Ptset.Int.t*Ptset.Int.t
- let equal (x,y) (z,t) = (Ptset.Int.equal x z)&&(Ptset.Int.equal y t)
- let equal a b = equal a b || equal b a
- let hash (x,y) = (* commutative hash *)
- let x = Ptset.Int.hash x
- and y = Ptset.Int.hash y
- in
- if x < y then HASHINT2(x,y) else HASHINT2(y,x)
- end)
-let collect_tags tree =
- let h_union = MemUnion.create BIG_H_SIZE in
- let pt_cup s1 s2 =
- try
- MemUnion.find h_union (s1,s2)
- with
- | Not_found -> let s = Ptset.Int.union s1 s2
- in
- MemUnion.add h_union (s1,s2) s;s
- in
- let h_add = Hashtbl.create BIG_H_SIZE in
- let pt_add t s =
- let k = HASHINT2(Tag.hash t,Ptset.Int.hash s) in
- try
- Hashtbl.find h_add k
- with
- | Not_found -> let r = Ptset.Int.add t s in
- Hashtbl.add h_add k r;r
- in
- let h = Hashtbl.create BIG_H_SIZE in
- let update t sb sa =
- let sbelow,safter =
- try
- Hashtbl.find h t
- with
- | Not_found ->
- (Ptset.Int.empty,Ptset.Int.empty)
- in
- Hashtbl.replace h t (pt_cup sbelow sb, pt_cup safter sa)
+let rec fold_siblings tree f node acc =
+ if node == nil then acc else fold_siblings tree f (tree_next_sibling tree node) (f node acc)
+module TS =
+ struct
+ type t = bool array
+ let create n = Array.create n false
+ let add e a = a.(e) <- true; a
+ let merge a b =
+ for i = 0 to Array.length a - 1 do
+ a.(i) <- a.(i) || b.(i)
+ done
+ let clear a =
+ for i = 0 to Array.length a - 1 do
+ a.(i) <- false;
+ done
+
+ let to_ptset a =
+ let r = ref Ptset.Int.empty in
+ for i = 0 to Array.length a - 1 do
+ r := Ptset.Int.add i !r;
+ done;
+ !r
+ end
+
+
+let collect_children_siblings tree =
+ let ntags = (tree_num_tags tree) in
+ let () = Printf.eprintf ">>>length: %i\n%!" ntags in
+ let table_c = Array.init (tree_num_tags tree) (fun _ -> TS.create ntags) in
+ let table_n = Array.init (tree_num_tags tree) (fun _ -> TS.create ntags) in
+ let acc_tag n s = TS.add (tree_tag tree n) s in
+ let count = ref 0 in
+ let size = tree_subtree_size tree root in
+ let tmp = TS.create ntags in
+ let rec loop node =
+ if node == nil then ()
+ else
+ let () = if !count mod 10000 == 0 then
+ Printf.eprintf "Node %i / %i\n%!" !count size;
+ in
+ let () = if !count mod 1000000 == 0 then Gc.compact() in
+ let () = count := !count + 1 in
+ let tag = tree_tag tree node in
+ let () = TS.clear tmp in
+ let children =
+ fold_siblings tree
+ acc_tag
+ (tree_first_child tree node) tmp
+ in
+ let () = TS.merge table_c.(tag) children in
+ let () = TS.clear tmp in
+ let siblings =
+ fold_siblings tree
+ acc_tag
+ (tree_next_sibling tree node) tmp
+ in
+ TS.merge table_n.(tag) siblings;
+ loop (tree_first_child tree node);
+ loop (tree_next_sibling tree node)
in
- let rec loop id acc =
- if equal_node id nil
- then (Ptset.Int.empty,acc)
+ loop root;
+ ( Array.map TS.to_ptset table_c,
+ Array.map TS.to_ptset table_n )
+
+let collect_children_siblings tree =
+ let table_c = Array.create (tree_num_tags tree) Ptset.Int.empty in
+ let table_n = Array.copy table_c in
+ let rec loop node =
+ if node == nil then Ptset.Int.empty
else
- let below2,after2 = loop (tree_next_sibling tree id) acc in
- let below1,after1 = loop (tree_first_child tree id) after2 in
- let tag = tree_tag_id tree id in
- update tag below1 after2;
- pt_add tag (pt_cup below1 below2), (pt_add tag after1)
+ let children = loop (tree_first_child tree node) in
+ let tag = tree_tag tree node in
+ let () = table_c.(tag) <- Ptset.Int.union table_c.(tag) children in
+ let siblings = loop (tree_next_sibling tree node) in
+ Ptset.Int.add tag siblings
in
- let _ = loop (tree_root tree) Ptset.Int.empty in h
+ ignore (loop root);
+ table_c, table_n
+let collect_descendants tree =
+ let table_d = Array.create (tree_num_tags tree) Ptset.Int.empty in
+ let rec loop node =
+ if node == nil then Ptset.Int.empty
+ else
+ let d1 = loop (tree_first_child tree node) in
+ let d2 = loop (tree_next_sibling tree node) in
+ let tag = tree_tag tree node in
+ table_d.(tag) <- Ptset.Int.union table_d.(tag) d1;
+ Ptset.Int.add tag (Ptset.Int.union d1 d2)
+ in
+ ignore (loop root);
+ table_d
+
+let collect_followings tree =
+ let table_f = Array.create (tree_num_tags tree) Ptset.Int.empty in
+ let rec loop node acc =
+ if node == nil then acc else
+ let f1 = loop (tree_next_sibling tree node) acc in
+ let f2 = loop (tree_first_child tree node) f1 in
+ let tag = tree_tag tree node in
+ table_f.(tag) <- Ptset.Int.union table_f.(tag) f1;
+ Ptset.Int.add tag (Ptset.Int.union f1 f2)
+ in
+ ignore (loop root Ptset.Int.empty);
+ table_f
+
+let collect_tags tree =
+ let c,n = time (collect_children_siblings) tree ~msg:"Collecting child and sibling tags" in
+ let d = time collect_descendants tree ~msg:"Collecting descendant tags" in
+ let f = time collect_followings tree ~msg:"Collecting following tags" in
+ c,n,d,f
let contains_array = ref [| |]
-let contains_index = Hashtbl.create 4096
+let contains_index = Hashtbl.create 4096
let in_array _ i =
try
Hashtbl.find contains_index i
with
Not_found -> false
-let init_contains t s =
- let a = text_contains t.doc s
+let init_textfun f t s =
+ let a = match f with
+ | `CONTAINS -> text_contains t.doc s
+ | `STARTSWITH -> text_prefix t.doc s
+ | `ENDSWITH -> text_suffix t.doc s
+ | `EQUALS -> text_equals t.doc s
in
- Array.fast_sort (compare) a;
+ (*Array.fast_sort (compare) a; *)
contains_array := a;
Array.iter (fun x -> Hashtbl.add contains_index x true) !contains_array
-
+
let count_contains t s = text_count_contains t.doc s
-let unsorted_contains t s = text_unsorted_contains t.doc s
let init_naive_contains t s =
let i,j = tree_doc_ids t.doc (tree_root t.doc)
in
let regexp = Str.regexp_string s in
- let matching arg =
+ let matching arg =
try
let _ = Str.search_forward regexp arg 0;
in true
with _ -> false
in
- let rec loop n acc l =
+ let rec loop n acc l =
if n >= j then acc,l
else
- let s = text_get_cached_text t.doc n
+ let s = text_get_text t.doc n
in
- if matching s
- then loop (n+1) (n::acc) (l+1)
- else loop (n+1) acc l
+ if matching s
+ then loop (nodei ((inode n)+1)) (n::acc) (l+1)
+ else loop (nodei ((inode n)+1)) acc l
in
let acc,l = loop i [] 0 in
- let a = Array.create l nil in
+ let a = Array.create l nulldoc in
let _ = List.fold_left (fun cpt e -> a.(cpt) <- e; (cpt-1)) (l-1) acc
in
contains_array := a
-
+
+let last_idx = ref 0
+
+let array_find a i j =
+ let l = Array.length a in
+ let rec loop idx x y =
+ if x > y || idx >= l then nulldoc
+ else
+ if a.(idx) >= x then if a.(idx) > y then nulldoc else (last_idx := idx;a.(idx))
+ else loop (idx+1) x y
+ in
+ if a.(0) > j || a.(l-1) < i then nulldoc
+ else loop !last_idx i j
+
+let text_below tree t =
+ let l = Array.length !contains_array in
+ let i,j = tree_doc_ids tree.doc t in
+ let id = if l == 0 then i else (array_find !contains_array i j) in
+ tree_parent_node tree.doc id
+
+let text_next tree t root =
+ let l = Array.length !contains_array in
+ let inf = nodei((inode(snd(tree_doc_ids tree.doc t)))+1) in
+ let _,j = tree_doc_ids tree.doc root in
+ let id = if l == 0 then if inf > j then nulldoc else inf
+ else array_find !contains_array inf j
+ in
+ tree_parent_node tree.doc id
+
module DocIdSet = struct
include Set.Make (struct type t = [`Text] node
let compare = compare_node end)
-
+
end
-let is_nil t = t.node == nil
+let is_nil t = t == nil
-let is_node t = t.node != nil
+let is_node t = t != nil
+let is_root t = t == root
let node_of_t t =
let _ = Tag.init (Obj.magic t) in
- let table = collect_tags t
+ let c,n,d,f = collect_tags t
in
- { doc= t;
- node = tree_root t;
- ttable = table;
+ { doc= t;
+ children = c;
+ siblings = n;
+ descendants = d;
+ followings = f
+
}
+
let finalize _ = Printf.eprintf "Release the string list !\n%!"
;;
let parse f str =
node_of_t
- (f str
- !Options.sample_factor
+ (f str
+ !Options.sample_factor
!Options.index_empty_texts
!Options.disable_text_collection)
-
+
let parse_xml_uri str = parse parse_xml_uri str
let parse_xml_string str = parse parse_xml_string str
-
+let size t = tree_size t.doc;;
+
external pool : tree -> Tag.pool = "%identity"
-let save t str = (save_tree t.doc str)
+let magic_string = "SXSI_INDEX"
+let version_string = "3"
+
+let pos fd =
+ Unix.lseek fd 0 Unix.SEEK_CUR
+
+let pr_pos fd = Printf.eprintf "At position %i\n%!" (pos fd)
+
+let write fd s =
+ let sl = String.length s in
+ let ssl = Printf.sprintf "%020i" sl in
+ ignore (Unix.write fd ssl 0 20);
+ ignore (Unix.write fd s 0 (String.length s))
+
+let rec really_read fd buffer start length =
+ if length <= 0 then () else
+ match Unix.read fd buffer start length with
+ 0 -> raise End_of_file
+ | r -> really_read fd buffer (start + r) (length - r);;
+
+let read fd =
+ let buffer = String.create 20 in
+ let _ = really_read fd buffer 0 20 in
+ let size = int_of_string buffer in
+ let buffer = String.create size in
+ let _ = really_read fd buffer 0 size in
+ buffer
+
+let save_tag_table channel t =
+ let t = Array.map (fun s -> Array.of_list (Ptset.Int.elements s)) t in
+ Marshal.to_channel channel t []
+
+let save t str =
+ let fd = Unix.openfile str [ Unix.O_WRONLY;Unix.O_TRUNC;Unix.O_CREAT] 0o644 in
+ let out_c = Unix.out_channel_of_descr fd in
+ let _ = set_binary_mode_out out_c true in
+ output_string out_c magic_string;
+ output_char out_c '\n';
+ output_string out_c version_string;
+ output_char out_c '\n';
+ save_tag_table out_c t.children;
+ save_tag_table out_c t.siblings;
+ save_tag_table out_c t.descendants;
+ save_tag_table out_c t.followings;
+ (* we need to move the fd to the correct position *)
+ flush out_c;
+ ignore (Unix.lseek fd (pos_out out_c) Unix.SEEK_SET);
+ tree_save t.doc fd str;
+ close_out out_c
;;
+let load_tag_table channel =
+ let table : int array array = Marshal.from_channel channel in
+ Array.map (fun a -> Ptset.Int.from_list (Array.to_list a)) table
+
+let load ?(sample=64) ?(load_text=true) str =
+ let fd = Unix.openfile str [ Unix.O_RDONLY ] 0o644 in
+ let in_c = Unix.in_channel_of_descr fd in
+ let _ = set_binary_mode_in in_c true in
+ let load_table () =
+ (let ms = input_line in_c in if ms <> magic_string then failwith "Invalid index file");
+ (let vs = input_line in_c in if vs <> version_string then failwith "Invalid version file");
+ let c = load_tag_table in_c in
+ let s = load_tag_table in_c in
+ let d = load_tag_table in_c in
+ let f = load_tag_table in_c in
+ c,s,d,f
+ in
+ let _ = Printf.eprintf "\nLoading tag table : " in
+ let c,s,d,f = time (load_table) () in
+ ignore(Unix.lseek fd (pos_in in_c) Unix.SEEK_SET);
+ let tree = { doc = tree_load fd str load_text sample;
+ children = c;
+ siblings = s;
+ descendants = d;
+ followings = f
+ }
+ in close_in in_c;
+ tree
-let load ?(sample=64) str =
- node_of_t (load_tree str sample)
-
let tag_pool t = pool t.doc
-
-let compare a b = a.node - b.node
-let equal a b = a.node == b.node
-
+let compare = compare_node
+
+let equal a b = a == b
+
let nts = function
-1 -> "Nil"
| i -> Printf.sprintf "Node (%i)" i
-
-let dump_node t = nts t.node
-let mk_nil t = { t with node = nil }
-let root n = { n with node = tree_root n.doc }
+let dump_node t = nts (inode t)
+
+let is_left t n = tree_is_first_child t.doc n
+
+
+
+let is_below_right t n1 n2 =
+ tree_is_ancestor t.doc (tree_parent t.doc n1) n2
+ && not (tree_is_ancestor t.doc n1 n2)
+
+let is_binary_ancestor t n1 n2 =
+ let p = tree_parent t.doc n1 in
+ let fin = tree_closing t.doc p in
+ n2 > n1 && n2 < fin
+(* (is_below_right t n1 n2) ||
+ (tree_is_ancestor t.doc n1 n2) *)
+
+let parent t n = tree_parent t.doc n
+
+let first_child t = let doc = t.doc in ();fun n -> tree_first_child doc n
+let first_element t = let doc = t.doc in (); fun n -> tree_first_element doc n
+let first_element t n = tree_first_element t.doc n
+(* these function will be called in two times: first partial application
+ on the tag, then application of the tag and the tree, then application of
+ the other arguments. We use the trick to let the compiler optimize application
+*)
+
+let tagged_child t tag = () ; fun n -> tree_tagged_child t.doc n tag
+
+let select_child t = fun ts ->
+ let v = ptset_to_vector ts in ();
+ fun n -> tree_select_child t.doc n v
-let is_root n = n.node == (tree_root n.doc)
-
-let is_left n = tree_is_first_child n.doc n.node
+let next_sibling t = let doc = t.doc in (); fun n -> tree_next_sibling doc n
+let next_element t = let doc = t.doc in (); fun n -> tree_next_element doc n
+let next_element t n = tree_next_element t.doc n
-let is_below_right t1 t2 = tree_is_ancestor t1.doc (tree_parent t1.doc t1.node) t2.node
+let tagged_following_sibling t tag = (); fun n -> tree_tagged_following_sibling t.doc n tag
-let parent n = { n with node = tree_parent n.doc n.node }
+let select_following_sibling t = fun ts ->
+ let v = (ptset_to_vector ts) in ();
+ fun n -> tree_select_following_sibling t.doc n v
-let first_child n = { n with node = tree_first_child n.doc n.node }
-let tagged_child tag n = { n with node = tree_tagged_child n.doc n.node tag }
-let select_child ts n = { n with node = tree_select_child n.doc n.node (ptset_to_vector ts) }
+let next_sibling_below t = (); fun n _ -> tree_next_sibling t.doc n
+let next_element_below t = (); fun n _ -> tree_next_element t.doc n
-let next_sibling n = { n with node = tree_next_sibling n.doc n.node }
-let tagged_sibling tag n = { n with node = tree_tagged_sibling n.doc n.node tag }
-let select_sibling ts n = { n with node = tree_select_foll_sibling n.doc n.node (ptset_to_vector ts) }
+let tagged_following_sibling_below t tag = (); fun n _ -> tree_tagged_following_sibling t.doc n tag
-let next_sibling_ctx n _ = next_sibling n
-let tagged_sibling_ctx tag n _ = tagged_sibling tag n
-let select_sibling_ctx ts n _ = select_sibling ts n
+let select_following_sibling_below t = fun ts ->
+ let v = (ptset_to_vector ts) in ();
+ fun n _ -> tree_select_following_sibling t.doc n v
-let id t = tree_node_xml_id t.doc t.node
-
-let tag t = if t.node == nil then Tag.nullt else tree_tag_id t.doc t.node
+let id t n = tree_node_xml_id t.doc n
-let tagged_desc tag n = { n with node = tree_tagged_desc n.doc n.node tag }
-let select_desc ts n = { n with node = tree_select_desc n.doc n.node (ptset_to_vector ts) }
+let tag t n = if n == nil then Tag.nullt else tree_tag t.doc n
-let tagged_foll_ctx tag t ctx =
- { t with node = tree_tagged_foll_below t.doc t.node tag ctx.node }
-let select_foll_ctx ts n ctx = { n with node = tree_select_foll_below n.doc n.node (ptset_to_vector ts) ctx.node }
+let tagged_descendant t tag =
+ let doc = t.doc in (); fun n -> tree_tagged_descendant doc n tag
+
+let select_descendant t = fun ts ->
+ let v = (ptset_to_vector ts) in ();
+ fun n -> tree_select_descendant t.doc n v
+
+let tagged_following_below t tag =
+ let doc = t.doc in
+ (); fun n ctx -> tree_tagged_following_below doc n tag ctx
+
+let select_following_below t = fun ts ->
+ let v = (ptset_to_vector ts) in ();
+ fun n ctx -> tree_select_following_below t.doc n v ctx
+
+let closing t n = tree_closing t.doc n
+let is_open t n = tree_is_open t.doc n
+let get_text_id t n = tree_my_text t.doc n
let last_idx = ref 0
let array_find a i j =
else loop (idx+1) x y
in
if a.(0) > j || a.(l-1) < i then nil
- else loop !last_idx i j
+ else loop !last_idx i j
let count t s = text_count t.doc s
-
- let print_xml_fast outc t =
- let rec loop ?(print_right=true) t =
- if t.node != nil
- then
- let tagid = tree_tag_id t.doc t.node in
+ let stack = ref []
+ let init_stack () = stack := []
+ let push x = stack:= x::!stack
+ let peek () = match !stack with
+ p::_ -> p
+ | _ -> failwith "peek"
+ let pop () = match !stack with
+ p::r -> stack:=r; p
+ | _ -> failwith "pop"
+
+ let next t = nodei ( (inode t) + 1 )
+ let next2 t = nodei ( (inode t) + 2 )
+ let next3 t = nodei ( (inode t) + 3 )
+
+ let print_xml_fast2 =
+ let _ = init_stack () in
+ let h = Hashtbl.create MED_H_SIZE in
+ let tag_str t = try Hashtbl.find h t with
+ Not_found -> let s = Tag.to_string t in
+ Hashtbl.add h t s;s
+ in
+ let h_att = Hashtbl.create MED_H_SIZE in
+ let att_str t = try Hashtbl.find h_att t with
+ Not_found -> let s = Tag.to_string t in
+ let attname = String.sub s 3 ((String.length s) -3) in
+ Hashtbl.add h_att t attname;attname
+ in fun outc tree t ->
+ let tree = tree.doc in
+ let fin = tree_closing tree t in
+ let rec loop_tag t tag =
+ if t <= fin then
+ if tree_is_open tree t then
+ (* opening tag *)
+ if tag == Tag.pcdata then
+ begin
+ output_string outc (text_get_text tree (tree_my_text_unsafe tree t));
+ loop (next2 t) (* skip closing $ *)
+ end
+ else
+ let tagstr = tag_str tag in
+ let _ = output_char outc '<';
+ output_string outc tagstr in
+ let t' = next t in
+ if tree_is_open tree t' then
+ let _ = push tagstr in
+ let tag' = tree_tag tree t' in
+ if tag' == Tag.attribute then let t'' = loop_attr (next t') 0 in
+ output_string outc ">"; loop t'' else (output_string outc ">";loop_tag t' tag')
+ else (* closing with no content *)
+ let _ = output_string outc "/>" in
+ loop (next t')
+ else
+ begin
+ (* closing tag *)
+ output_string outc "</";
+ output_string outc (pop());
+ output_char outc '>';
+ loop (next t);
+ end
+ and loop t = loop_tag t (tree_tag tree t)
+ and loop_attr t n =
+ if tree_is_open tree t then
+ let attname = att_str (tree_tag tree t) in
+ output_char outc ' ';
+ output_string outc attname;
+ output_string outc "=\"";
+ let t = next t in (* open $@ *)
+ output_string outc (text_get_text tree (tree_my_text_unsafe tree t));
+ output_char outc '"';
+ loop_attr (next3 t) (n+1)
+ else
+ next t (* close @ *)
+ in loop t
+
+ let print_xml_fast =
+ let h = Hashtbl.create MED_H_SIZE in
+ let tag_str t = try Hashtbl.find h t with
+ Not_found -> let s = Tag.to_string t in
+ Hashtbl.add h t s;s
+ in
+ let h_att = Hashtbl.create MED_H_SIZE in
+ let att_str t = try Hashtbl.find h_att t with
+ Not_found -> let s = Tag.to_string t in
+ let attname = String.sub s 3 ((String.length s) -3) in
+ Hashtbl.add h_att t attname;attname
+ in fun outc tree t ->
+ let rec loop ?(print_right=true) t =
+ if t != nil
+ then
+ let tagid = tree_tag tree.doc t in
if tagid==Tag.pcdata
- then output_string outc (text_get_cached_text t.doc t.node);
- if print_right
- then loop (next_sibling t)
-
+ then
+ begin
+ let tid = tree_my_text_unsafe tree.doc t in
+ output_string outc (text_get_text tree.doc tid);
+ if print_right
+ then loop (next_sibling tree t);
+ end
else
- let tagstr = Tag.to_string tagid in
- let l = first_child t
- and r = next_sibling t
+ let tagstr = tag_str tagid in
+ let l = first_child tree t
+ and r = next_sibling tree t
in
output_char outc '<';
- output_string outc tagstr;
- if l.node == nil then output_string outc "/>"
- else
- if (tag l) == Tag.attribute then
+ output_string outc tagstr;
+ if l == nil then output_string outc "/>"
+ else
+ if (tag tree l) == Tag.attribute then
begin
- loop_attributes (first_child l);
- if (next_sibling l).node == nil then output_string outc "/>"
- else
- begin
- output_char outc '>';
- loop (next_sibling l);
+ loop_attributes (first_child tree l);
+ if (next_sibling tree l) == nil then output_string outc "/>"
+ else
+ begin
+ output_char outc '>';
+ loop (next_sibling tree l);
output_string outc "</";
output_string outc tagstr;
output_char outc '>';
end
else
begin
- output_char outc '>';
+ output_char outc '>';
loop l;
output_string outc "</";
output_string outc tagstr;
output_char outc '>';
end;
if print_right then loop r
- and loop_attributes a =
- let s = (Tag.to_string (tag a)) in
- let attname = String.sub s 3 ((String.length s) -3) in
+ and loop_attributes a =
+ if a != nil
+ then
+ let attname = att_str (tag tree a) in
+ let fsa = first_child tree a in
+ let tid = tree_my_text_unsafe tree.doc fsa in
output_char outc ' ';
output_string outc attname;
output_string outc "=\"";
- output_string outc (text_get_cached_text t.doc
- (tree_my_text a.doc (first_child a).node));
+ output_string outc (text_get_text tree.doc tid);
output_char outc '"';
- loop_attributes (next_sibling a)
+ loop_attributes (next_sibling tree a)
in
loop ~print_right:false t
-
-
- let print_xml_fast outc t =
- if (tag t) = Tag.document_node then
- print_xml_fast outc (first_child t)
- else print_xml_fast outc t
-
-let tags_below t tag =
- fst(Hashtbl.find t.ttable tag)
-let tags_after t tag =
- snd(Hashtbl.find t.ttable tag)
+ let print_xml_fast outc tree t =
+ if (tag tree t) = Tag.document_node then
+ print_xml_fast outc tree (first_child tree t)
+ else print_xml_fast outc tree t
+
+let tags_children t tag = t.children.(tag)
+
+let tags_below t tag = t.descendants.(tag)
+
+let tags_siblings t tag = t.siblings.(tag)
-let tags t tag = Hashtbl.find t.ttable tag
+let tags_after t tag = t.followings.(tag)
-let rec binary_parent t =
- if tree_is_first_child t.doc t.node
- then { t with node = tree_parent t.doc t.node }
- else { t with node = tree_prev_sibling t.doc t.node }
-let doc_ids (t:t) : (int*int) =
- (Obj.magic (tree_doc_ids t.doc t.node))
+let tags t tag =
+ t.children.(tag),
+ t.descendants.(tag),
+ t.siblings.(tag),
+ t.followings.(tag)
-let subtree_tags t tag =
- if t.node == nil then 0 else
- tree_subtree_tags t.doc t.node tag
-let get_text t =
- let tid = tree_my_text t.doc t.node in
- if tid == nil then "" else
- let a, b = tree_doc_ids t.doc (tree_root t.doc) in
- let _ = Printf.eprintf "Trying to take text %i of node %i in %i %i\n%!" tid t.node a b in
- text_get_cached_text t.doc tid
+let rec binary_parent t n =
+ let r =
+ if tree_is_first_child t.doc n
+ then tree_parent t.doc n
+ else tree_prev_sibling t.doc n
+ in if tree_tag t.doc r = Tag.pcdata then
+ binary_parent t r
+ else r
+let doc_ids t n = tree_doc_ids t.doc n
-let dump_tree fmt t =
- let rec loop tree n =
- if tree != nil then
- let tag = (tree_tag_id t.doc tree ) in
+let subtree_tags t tag = ();
+ fun n -> if n == nil then 0 else
+ tree_subtree_tags t.doc n tag
+
+let get_text t n =
+ let tid = tree_my_text t.doc n in
+ if tid == nulldoc then "" else
+ text_get_text t.doc tid
+
+
+let dump_tree fmt tree =
+ let rec loop t n =
+ if t != nil then
+ let tag = (tree_tag tree.doc t ) in
let tagstr = Tag.to_string tag in
let tab = String.make n ' ' in
- if tag == Tag.pcdata || tag == Tag.attribute_data
- then
- Format.fprintf fmt "%s<%s>%s</%s>\n"
- tab tagstr (text_get_cached_text t.doc (tree_my_text t.doc tree)) tagstr
+ if tag == Tag.pcdata || tag == Tag.attribute_data
+ then
+ Format.fprintf fmt "%s<%s>%s</%s>\n"
+ tab tagstr (text_get_text tree.doc (tree_my_text tree.doc t)) tagstr
else begin
Format.fprintf fmt "%s<%s>\n" tab tagstr;
- loop (tree_first_child t.doc tree) (n+2);
+ loop (tree_first_child tree.doc t) (n+2);
Format.fprintf fmt "%s</%s>\n%!" tab tagstr;
end;
- loop (tree_next_sibling t.doc tree) n
+ loop (tree_next_sibling tree.doc t) n
in
- loop (tree_root t.doc) 0
+ loop root 0
;;
-
+
+let print_xml_fast3 t = tree_print_xml_fast3 t.doc
+
+
+
+
+let stats t =
+ let tree = t.doc in
+ let rec loop left node acc_d total_d num_leaves =
+ if node == nil then
+ (acc_d+total_d,if left then num_leaves+1 else num_leaves)
+ else
+ let d,td = loop true (tree_first_child tree node) (acc_d+1) total_d num_leaves in
+ loop false (tree_next_sibling tree node) (acc_d) d td
+ in
+ let a,b = loop true root 0 0 0
+ in
+ Printf.eprintf "Average depth: %f, number of leaves %i\n%!" ((float_of_int a)/. (float_of_int b)) b
+;;
+
+
+
+
+
+
+let test_prefix t s = Array.length (text_prefix t.doc s)
+let test_suffix t s = Array.length (text_suffix t.doc s)
+let test_contains t s = Array.length (text_contains t.doc s)
+let test_equals t s = Array.length (text_equals t.doc s)
projects / SXSI / xpathcomp.git / blobdiff