Temporary commit.

[SXSI/xpathcomp.git] / src / OCamlDriver.cpp

diff --git a/src/OCamlDriver.cpp b/src/OCamlDriver.cpp
index c1a4fdd..0f15f49 100644 (file)
--- a/src/OCamlDriver.cpp
+++ b/src/OCamlDriver.cpp
@@ -20,6 +20,7 @@
 
 #include "XMLTree.h"
 #include "XMLTreeBuilder.h"
+#include "Grammar.h"
 #include "Utils.h"
 #include "common_stub.hpp"
 
@@ -31,6 +32,8 @@
 
 #define XMLTREEBUILDER(x) (Obj_val<XMLTreeBuilder*>(x))
 
+#define GRAMMAR(x) (Obj_val<Grammar*>(x))
+
 
 #define TREENODEVAL(i) ((treeNode) (Int_val(i)))
 #define TAGVAL(i) ((TagType) (Int_val(i)))
@@ -40,6 +43,7 @@
 extern "C" {
 #include <sys/time.h>
 #include <sys/resource.h>
+#include <stdio.h>
 }
 
 
@@ -152,16 +156,13 @@ extern "C"  value caml_xml_tree_save(value tree,value fd, value name){
 
 extern "C"  value caml_xml_tree_load(value fd, value name, value load_tc,value sf){
   CAMLparam4(fd, name, load_tc, sf);
-  CAMLlocal2(result,tmp);
+  CAMLlocal1(result);
   XMLTree * tree;
   try {
 
     tree = XMLTree::Load(Int_val(fd),Bool_val(load_tc),Int_val(sf), String_val(name));
     result = sxsi_alloc_custom<XMLTree*>();
-
     Obj_val<XMLTree*>(result) = tree;
-    tmp = sxsi_alloc_custom<long>();
-    Obj_val<long>(tmp) = 3l;
     CAMLreturn(result);
   }
   catch (const std::exception& e){ CAMLRAISEMSG(e.what()); }
@@ -893,3 +894,58 @@ BV_QUERY(suffix, Suffix)
 BV_QUERY(equals, Equals)
 BV_QUERY(contains, Contains)
 BV_QUERY(lessthan, LessThan)
+
+
+
+//////////////////////////////////////////// Grammar stuff
+
+extern "C" value caml_grammar_load(value file, value load_bp)
+{
+  CAMLparam2(file, load_bp);
+  CAMLlocal1(result);
+  Grammar *grammar;
+  int f1 = Int_val(file);
+  int f2 = dup(f1);
+  FILE * fd = fdopen(f2, "r");
+  if (fd == NULL)
+    CAMLRAISEMSG("Error opening grammar file");
+  grammar = Grammar::load(fd, Bool_val(load_bp));
+  fclose(fd);
+  result = sxsi_alloc_custom<Grammar*>();
+  Obj_val<Grammar*>(result) = grammar;
+  CAMLreturn(result);
+}
+
+extern "C" value caml_grammar_get_symbol_at(value grammar, value symbol, value preorder)
+{
+  CAMLparam3(grammar, symbol, preorder);
+  CAMLreturn(Val_long(GRAMMAR(grammar)->getSymbolAt(Long_val(symbol), Int_val(preorder))));
+
+}
+
+extern "C" value caml_grammar_first_child(value grammar, value rule, value pos)
+{
+  CAMLparam1(grammar);
+  CAMLreturn(Val_int(GRAMMAR(grammar)->firstChild(Long_val(rule), Int_val(pos))));
+}
+
+extern "C" value caml_grammar_next_sibling(value grammar, value rule, value pos)
+{
+  CAMLparam1(grammar);
+  CAMLreturn(Val_int(GRAMMAR(grammar)->nextSibling(Long_val(rule), Int_val(pos))));
+}
+
+extern "C" value caml_grammar_is_nil(value grammar, value rule)
+{
+  CAMLparam1(grammar);
+  CAMLreturn(Val_bool(GRAMMAR(grammar)->isNil(Long_val(rule))));
+}
+
+extern "C" value caml_grammar_get_tag(value grammar, value symbol)
+{
+  CAMLparam1(grammar);
+  CAMLlocal1(res);
+  const char * s = (GRAMMAR(grammar)->getTagName(Long_val(symbol) >> 2)).c_str();
+  res = caml_copy_string(s);
+  CAMLreturn(res);
+}