1 /**************************************
4 * An Ocaml Driver which calls the C++ methods and
5 * adds a C wrapper interface with OCaml code.
13 #include <unordered_set>
15 #include "XMLDocShredder.h"
20 /* OCaml memory managment */
21 #include <caml/mlvalues.h>
22 #include <caml/alloc.h>
23 #include <caml/memory.h>
24 #include <caml/callback.h>
25 #include <caml/fail.h>
26 #include <caml/custom.h>
29 #define CAMLRAISEMSG(msg) (caml_raise_with_string(*cpp_exception,(msg) ))
30 #define NOT_IMPLEMENTED(s) (caml_failwith(s))
31 #define XMLTREE(x) ((XMLTree *)(* (XMLTree**) Data_custom_val(x)))
32 #define HSET(x) ((std::unordered_set<int>*)((* (XMLTree**) Data_custom_val(x))))
33 #define TEXTCOLLECTION(x)
34 #define TREENODEVAL(i) ((treeNode) (Int_val(i)))
35 #define XMLTREE_ROOT 0
37 static struct custom_operations ops;
38 static struct custom_operations set_ops;
39 static value * cpp_exception = NULL;
40 static bool ops_initialized = false;
44 extern "C" void caml_xml_tree_finalize(value tree){
49 extern "C" void caml_hset_finalize(value hblock){
54 extern "C" CAMLprim value caml_init_lib (value unit) {
56 if (!ops_initialized){
59 ops.identifier = (char*) "XMLTree";
60 ops.finalize = caml_xml_tree_finalize;
61 set_ops.identifier = (char*) "unordered_set";
62 set_ops.finalize = caml_hset_finalize;
64 cpp_exception = caml_named_value("CPlusPlusError");
65 if (cpp_exception == NULL){
66 string s = "FATAL: Unregistered exception ";
67 s += "CPlusPlusError";
68 caml_failwith(s.c_str());
71 ops_initialized = true;
77 extern "C" CAMLprim value caml_shredder_parse(XMLDocShredder *shredder){
81 shredder->processStartDocument("");
83 shredder->processEndDocument();
84 doc = caml_alloc_custom(&ops,sizeof(XMLTree*),1,2);
85 tree = (XMLTree *) shredder->getXMLTree();
86 memcpy(Data_custom_val(doc),&tree,sizeof(XMLTree*));
91 extern "C" CAMLprim value caml_call_shredder_uri(value uri,value sf, value iet, value dtc){
94 char *fn = String_val(uri);
95 XMLDocShredder * shredder;
97 shredder = new XMLDocShredder(fn,Int_val(sf),Bool_val(iet),Bool_val(dtc));
98 doc = caml_shredder_parse(shredder);
101 catch (const std::exception& e){ CAMLRAISEMSG(e.what()); }
102 catch (string msg){ CAMLRAISEMSG(msg.c_str()); }
103 catch (char const * msg){ CAMLRAISEMSG(msg); };
107 extern "C" CAMLprim value caml_call_shredder_string(value data,value sf, value iet, value dtc){
110 XMLDocShredder * shredder;
111 unsigned int ln = string_length(data);
112 unsigned char *fn = (unsigned char*) String_val(data);
114 shredder = new XMLDocShredder (fn,ln,Int_val(sf),Bool_val(iet),Bool_val(dtc));
115 doc = caml_shredder_parse(shredder);
118 catch (const std::exception& e){ CAMLRAISEMSG(e.what()); }
119 catch (string msg){ CAMLRAISEMSG(msg.c_str()); }
120 catch (char const * msg){ CAMLRAISEMSG(msg); };
124 extern "C" CAMLprim value caml_xml_tree_save(value tree,value fd){
126 XMLTREE(tree)->Save(Int_val(fd));
127 CAMLreturn (Val_unit);
130 extern "C" CAMLprim value caml_xml_tree_load(value fd){
135 tree = XMLTree::Load(Int_val(fd));
136 doc = caml_alloc_custom(&ops,sizeof(XMLTree*),1,2);
137 memcpy(Data_custom_val(doc),&tree,sizeof(XMLTree*));
140 catch (const xmlpp::internal_error& e){ CAMLRAISEMSG(e.what()); }
141 catch (const std::exception& e){ CAMLRAISEMSG(e.what()); }
142 catch (string msg){ CAMLRAISEMSG(msg.c_str()); }
143 catch (char const * msg){ CAMLRAISEMSG(msg); };
148 extern "C" CAMLprim value caml_text_collection_get_text(value tree, value id){
151 uchar* txt = XMLTREE(tree)->GetText((DocID) Int_val(id));
152 str = caml_copy_string((const char*)txt);
156 extern "C" CAMLprim value caml_text_collection_get_cached_text(value tree, value id){
159 char* txt = (char*) XMLTREE(tree)->GetText((DocID) Int_val(id));
160 str = caml_copy_string(txt);
165 extern "C" CAMLprim value caml_text_collection_empty_text(value tree,value id){
167 CAMLreturn ( Val_int((XMLTREE(tree))->EmptyText((DocID) Int_val(id))));
170 extern "C" CAMLprim value caml_text_collection_is_contains(value tree,value str){
171 CAMLparam2(tree,str);
172 uchar * cstr = (uchar *) String_val(str);
173 CAMLreturn ( Val_bool((int) XMLTREE(tree)->IsContains(cstr)));
176 extern "C" CAMLprim value caml_text_collection_count_contains(value tree,value str){
177 CAMLparam2(tree,str);
178 uchar * cstr = (uchar *) String_val(str);
179 CAMLreturn (Val_int((XMLTREE(tree)->CountContains(cstr))));
182 extern "C" CAMLprim value caml_text_collection_count(value tree,value str){
183 CAMLparam2(tree,str);
184 uchar * cstr = (uchar *) String_val(str);
185 CAMLreturn (Val_int((XMLTREE(tree)->Count(cstr))));
186 CAMLreturn (Val_unit);
189 bool docId_comp(DocID x, DocID y) { return x < y; };
191 extern "C" CAMLprim value caml_text_collection_contains(value tree,value str){
192 CAMLparam2(tree,str);
193 CAMLlocal1(resarray);
194 uchar * cstr = (uchar *) String_val(str);
195 std::vector<DocID> results;
196 results = XMLTREE(tree)->Contains(cstr);
198 std::sort(results.begin(), results.end(), docId_comp);
199 size_t s = results.size();
200 resarray = caml_alloc_tuple(s);
202 for (size_t i = 0; i < s ;i++){
203 caml_initialize(&Field(resarray,i),Val_int(results[i]));
205 CAMLreturn (resarray);
208 extern "C" CAMLprim value caml_text_collection_unsorted_contains(value tree,value str){
209 CAMLparam2(tree,str);
210 uchar * cstr = (uchar *) String_val(str);
211 std::vector<DocID> results;
212 results = XMLTREE(tree)->Contains(cstr);
213 CAMLreturn (Val_unit);
217 extern "C" CAMLprim value caml_xml_tree_root(value tree){
219 CAMLreturn (Val_int(TREENODEVAL(XMLTREE_ROOT)));
221 extern "C" CAMLprim value caml_xml_tree_text_collection(value tree){
223 CAMLreturn((value) XMLTREE(tree)->getTextCollection());
225 extern "C" CAMLprim value caml_xml_tree_parent(value tree, value id){
226 return(Val_int (XMLTREE(tree)->Parent(TREENODEVAL(id))));
228 extern "C" CAMLprim value caml_xml_tree_prev_sibling(value tree, value id){
229 return(Val_int (XMLTREE(tree)->PrevSibling(TREENODEVAL(id))));
232 extern "C" CAMLprim value caml_xml_tree_parent_doc(value tree, value id){
233 return (Val_int (XMLTREE(tree)->ParentNode((DocID) Int_val(id))));
236 extern "C" CAMLprim value caml_xml_tree_is_ancestor(value tree,value id1, value id2) {
237 CAMLparam3(tree,id1,id2);
238 CAMLreturn(Val_bool (XMLTREE(tree)->IsAncestor(TREENODEVAL(id1),TREENODEVAL(id2))));
241 extern "C" CAMLprim value caml_xml_tree_last_child(value tree, value id){
242 return(Val_int (XMLTREE(tree)->LastChild(TREENODEVAL(id))));
245 extern "C" CAMLprim value caml_xml_tree_is_first_child(value tree, value id){
246 return Val_bool (XMLTREE(tree)->IsFirstChild(TREENODEVAL(id)));
248 extern "C" CAMLprim value caml_xml_tree_first_child(value tree, value id){
249 return(Val_int (XMLTREE(tree)->FirstChild(TREENODEVAL(id))));
251 extern "C" CAMLprim value caml_xml_tree_first_element(value tree, value id){
252 return(Val_int (XMLTREE(tree)->FirstElement(TREENODEVAL(id))));
255 extern "C" CAMLprim value caml_xml_tree_tagged_child(value tree, value id, value tag){
256 return(Val_int (XMLTREE(tree)->TaggedChild(TREENODEVAL(id),Int_val(tag))));
259 extern "C" CAMLprim value caml_xml_tree_next_sibling(value tree, value id){
260 return(Val_int (XMLTREE(tree)->NextSibling(TREENODEVAL(id))));
263 extern "C" CAMLprim value caml_xml_tree_next_element(value tree, value id){
264 return(Val_int (XMLTREE(tree)->NextElement(TREENODEVAL(id))));
267 extern "C" CAMLprim value caml_xml_tree_tagged_sibling(value tree, value id, value tag){
268 return(Val_int (XMLTREE(tree)->TaggedFollSibling(TREENODEVAL(id),Int_val(tag))));
272 extern "C" CAMLprim value caml_xml_tree_is_leaf(value tree, value id){
273 return(Val_bool (XMLTREE(tree)->IsLeaf(TREENODEVAL(id))));
276 extern "C" CAMLprim value caml_xml_tree_tagged_desc(value tree, value id, value tag){
277 return(Val_int (XMLTREE(tree)->TaggedDesc(TREENODEVAL(id),(TagType) Int_val(tag))));
281 extern "C" CAMLprim value caml_xml_tree_tagged_foll(value tree, value id, value tag){
282 return(Val_int (XMLTREE(tree)->TaggedFoll(TREENODEVAL(id),(TagType) Int_val(tag))));
284 extern "C" CAMLprim value caml_xml_tree_tagged_foll_below(value tree, value id, value tag,value root){
285 return(Val_int (XMLTREE(tree)->TaggedFollBelow(TREENODEVAL(id),(TagType) Int_val(tag),TREENODEVAL(root))));
290 extern "C" CAMLprim value caml_xml_tree_my_text(value tree, value id){
291 return(Val_int((XMLTREE(tree)->MyText(TREENODEVAL(id)))));
294 extern "C" CAMLprim value caml_xml_tree_text_xml_id(value tree, value id){
295 return(Val_int((XMLTREE(tree)->TextXMLId(TREENODEVAL(id)))));
297 extern "C" CAMLprim value caml_xml_tree_node_xml_id(value tree, value id){
298 return(Val_int((XMLTREE(tree)->NodeXMLId(TREENODEVAL(id)))));
301 extern "C" CAMLprim value caml_xml_tree_tag_name(value tree, value tagid){
302 CAMLparam2(tree,tagid);
305 tag = (char*) XMLTREE(tree)->GetTagNameByRef((TagType) (Int_val(tagid)));
306 str = caml_copy_string((const char*) tag);
311 extern "C" CAMLprim value caml_xml_tree_tag_id(value tree,value id){
312 return (Val_int(XMLTREE(tree)->Tag(TREENODEVAL(id))));
315 extern "C" CAMLprim value caml_xml_tree_subtree_tags(value tree,value id,value tag){
316 return (Val_int(XMLTREE(tree)->SubtreeTags(TREENODEVAL(id),Int_val(tag))));
319 extern "C" CAMLprim value caml_xml_tree_subtree_size(value tree,value id){
320 return (Val_int(XMLTREE(tree)->SubtreeSize(TREENODEVAL(id))));
324 extern "C" CAMLprim value caml_xml_tree_register_tag(value tree,value str){
325 CAMLparam2(tree,str);
328 tag = (unsigned char*) (String_val(str));
329 id = Val_int(XMLTREE(tree)->RegisterTag(tag));
333 extern "C" CAMLprim value caml_xml_tree_nullt(value unit){
337 extern "C" CAMLprim value caml_unordered_set_length(value hset){
339 CAMLreturn (Val_int((HSET(hset))->size()));
342 extern "C" CAMLprim value caml_unordered_set_alloc(value len){
345 hset = caml_alloc_custom(&set_ops,sizeof(std::unordered_set<int>*),1,2);
346 std::unordered_set<int>* ht = new std::unordered_set<int>();
347 memcpy(Data_custom_val(hset),&ht,sizeof(std::unordered_set<int>*));
351 extern "C" CAMLprim value caml_unordered_set_set(value vec, value v){
352 HSET(vec)->insert((int) Int_val(v));
356 extern "C" CAMLprim value caml_xml_tree_select_desc(value tree, value node, value tags){
357 return (Val_int (XMLTREE(tree)->SelectDesc(TREENODEVAL(node),
360 extern "C" CAMLprim value caml_xml_tree_select_child(value tree, value node, value tags){
361 return (Val_int (XMLTREE(tree)->SelectChild(TREENODEVAL(node),
364 extern "C" CAMLprim value caml_xml_tree_select_foll_sibling(value tree, value node, value tags){
365 return (Val_int (XMLTREE(tree)->SelectFollSibling(TREENODEVAL(node),
368 extern "C" CAMLprim value caml_xml_tree_select_foll_below(value tree, value node, value tags,value ctx){
369 return (Val_int (XMLTREE(tree)->SelectFollBelow(TREENODEVAL(node),
375 extern "C" CAMLprim value caml_xml_tree_doc_ids(value tree, value node){
376 CAMLparam2(tree,node);
378 tuple = caml_alloc_tuple(2);
379 range r = (XMLTREE(tree)->DocIds(TREENODEVAL(node)));
380 caml_initialize(&Field(tuple,0),Val_int(r.min));
381 caml_initialize(&Field(tuple,1),Val_int(r.max));
385 extern "C" CAMLprim value caml_result_set_create(value size){
387 results* res = (results*) malloc(sizeof(results));
388 results r = createResults (Int_val(size));
392 CAMLreturn ((value) (res));
395 extern "C" CAMLprim value caml_result_set_set(value result,value p){
396 CAMLparam2(result,p);
397 setResult ( *((results*) result), Int_val(p));
398 CAMLreturn (Val_unit);
401 extern "C" CAMLprim value caml_result_set_clear(value result,value p1,value p2){
402 CAMLparam3(result,p1,p2);
403 clearRange ( *((results*) result), Int_val(p1), Int_val(p2));
404 CAMLreturn (Val_unit);
407 extern "C" CAMLprim value caml_result_set_next(value result,value p){
408 CAMLparam2(result,p);
409 CAMLreturn (Val_int(nextResult(*((results*) result), Int_val(p))));