// Current implementation corresponds to balanced-parentheses representation for\r
// the tree, and storing 2 tags per tree node (opening and closing tags).\r
\r
-// tag position -> tree node\r
-static treeNode tagpos2node(int t) \r
- {\r
- return (treeNode) t;\r
- }\r
\r
static int bits8 (int t ) {\r
int r = bits(t);\r
return r;\r
}\r
\r
-// tree node -> tag position\r
-static int node2tagpos(treeNode x) \r
-{\r
- return (int)x;\r
-}\r
-\r
-static int fast_find_close(bp *b,int s)\r
-{\r
- return fwd_excess(b,s,-1);\r
-}\r
-\r
-static int fast_inspect(bp* Par,treeNode i)\r
-{\r
- int j,l;\r
- j = i >> logD;\r
- l = i & (D-1);\r
- return (Par->B[j] >> (D-1-l)) & 1;\r
-}\r
-\r
-static treeNode fast_first_child(bp *Par, treeNode x)\r
-{\r
- x = x+1;\r
- return (fast_inspect(Par,x) == OP) ? x : NULLT;\r
-}\r
\r
-static treeNode fast_next_sibling(bp* Par,treeNode x)\r
-{\r
- x = fast_find_close(Par,x)+1;\r
- return (fast_inspect(Par,x) == OP) ? x : NULLT;\r
-}\r
\r
\r
static treeNode fast_sibling(bp* Par,treeNode x,TagType tag){\r
\r
}\r
\r
-inline bool fast_is_ancestor(bp * Par,treeNode x,treeNode y){\r
- if (x > y) \r
- return false;\r
- else\r
- return (x==0) || (y <= fast_find_close(Par,x));\r
-}\r
+\r
\r
\r
XMLTree::XMLTree( pb * const par, uint npar, vector<string> * const TN, TagIdMap * const tim, \r
}\r
\r
// IsFirstChild(x): returns whether node x is the first child of its parent.\r
-bool XMLTree::IsFirstChild(treeNode x)\r
+/*bool XMLTree::IsFirstChild(treeNode x)\r
{\r
return ((x != NULLT)&&(x==Root() || prev_sibling(Par,x) == (treeNode)-1));\r
}\r
-\r
+*/\r
\r
// NumChildren(x): number of children of node x. Constant time with the data structure\r
// of Sadakane.\r
}\r
\r
// Parent(x): returns the parent node of node x.\r
-\r
+/*\r
treeNode XMLTree::Parent(treeNode x) \r
{\r
if (x == Root())\r
return NULLT;\r
else\r
return parent(Par, x);;\r
- }\r
+ }*/\r
\r
// Child(x,i): returns the i-th child of node x, assuming it exists.\r
treeNode XMLTree::Child(treeNode x, int i) \r
}\r
\r
// FirstChild(x): returns the first child of node x, assuming it exists. Very fast in BP.\r
-\r
+/*\r
treeNode XMLTree::FirstChild(treeNode x) \r
{\r
NULLT_IF(x==NULLT);\r
return fast_first_child(Par, x);\r
}\r
-\r
+*/\r
+/*\r
treeNode XMLTree::FirstElement(treeNode x) \r
{\r
NULLT_IF(x==NULLT);\r
return x;\r
}\r
}\r
-\r
+*//*\r
treeNode XMLTree::NextElement(treeNode x) \r
{\r
NULLT_IF(x==NULLT);\r
return (fast_inspect(Par,x)==OP)? x : NULLT;\r
}\r
else return x; \r
-}\r
+ }*/\r
\r
// LastChild(x): returns the last child of node x.\r
treeNode XMLTree::LastChild(treeNode x)\r
}\r
\r
// NextSibling(x): returns the next sibling of node x, assuming it exists.\r
-treeNode XMLTree::NextSibling(treeNode x) \r
+/*treeNode XMLTree::NextSibling(treeNode x) \r
{\r
NULLT_IF(x==NULLT || x == Root() );\r
x = fast_find_close(Par,x)+1;\r
return (fast_inspect(Par,x) == CP ? NULLT : x);\r
}\r
-\r
+*/\r
\r
// PrevSibling(x): returns the previous sibling of node x, assuming it exists.\r
treeNode XMLTree::PrevSibling(treeNode x) \r
\r
// TaggedDescendant(x,tag): returns the first node tagged tag with larger preorder than x and within\r
// the subtree of x. Returns NULLT if there is none.\r
+/*\r
treeNode XMLTree::TaggedDescendant(treeNode x, TagType tag) \r
{\r
//NULLT_IF(x==NULLT || fast_isleaf(Par,x));\r
\r
return (fast_is_ancestor(Par,x,y) ? y : NULLT);\r
}\r
-\r
+*/\r
\r
treeNode XMLTree::SelectDescendant(treeNode x, TagIdSet *tags)\r
{\r
\r
// TaggedFollBelow(x,tag,root): returns the first node tagged tag with larger preorder than x \r
// and not in the subtree of x. Returns NULLT if there is none.\r
+/*\r
treeNode XMLTree::TaggedFollowingBelow(treeNode x, TagType tag, treeNode ancestor)\r
{\r
// NULLT_IF (x == NULLT || x == Root() || x == ancestor); \r
\r
//Special optimisation, test for the following sibling first\r
treeNode close = fast_find_close(Par, x);\r
- /*\r
- treeNode ns = close+1;\r
- if (fast_inspect(Par,ns) == OP) {\r
- TagType tagns = Tag(ns);\r
- // cout << GetTagNameByRef(tagns) << endl;\r
- //cout.flush();\r
- if (tagns == PCDATA_TAG_ID){\r
- close = ns+1;\r
- ns = ns+2;\r
- if (fast_inspect(Par,ns) != OP)\r
- goto after;\r
- tagns = Tag(ns); \r
- };\r
- if (tagns == tag)\r
- return ns;\r
- };\r
- after:\r
- */\r
treeNode s = tagpos2node(Tags->select_next(tag, close));\r
\r
if (ancestor == Root() || s==NULLT || s < fast_find_close(Par,ancestor)) return s;\r
else return NULLT;\r
} \r
+*/\r
\r
treeNode XMLTree::TaggedFollowingBefore(treeNode x, TagType tag, treeNode closing)\r
{\r