#include "basics.h"\r
-#include <cstring>\r
-#include <sstream>\r
#include "XMLTree.h"\r
-#include <sys/time.h>\r
-#include <time.h>\r
-#include <sys/stat.h> \r
-#include <unistd.h>\r
-\r
-static double tLoading = 0;\r
-\r
-static unsigned int cLoading = 0;\r
-static struct timeval tmpv1;\r
-static struct timeval tmpv2;\r
-static string mem1;\r
-static string mem2;\r
-\r
-void read_procmem(string& memstr) {\r
- std::string buf;\r
- pid_t pid = getpid();\r
- std::stringstream path;\r
- path << "/proc/" << pid << "/status";\r
- std::ifstream infile;\r
- infile.open (path.str().c_str(), std::ifstream::in);\r
- while (infile.good()){\r
- getline(infile,buf);\r
- if (infile.eof()) {\r
- memstr = "Could not read memory";\r
- return;\r
- };\r
- int idx = buf.find("VmRSS");\r
- if (idx == 0){\r
- memstr = buf;\r
- return;\r
- };\r
- };\r
- memstr = "Could not read memory";\r
- return;\r
+#include "timings.h"\r
+#include <errno.h>\r
+using std::cout;\r
+using std::endl;\r
+using std::min;\r
+using std::string;\r
+\r
+// functions to convert tag positions to the corresponding tree node and viceversa. \r
+// These are implemented in order to be able to change the tree and Tags representations, \r
+// without affecting the code so much.\r
+// Current implementation corresponds to balanced-parentheses representation for\r
+// the tree, and storing 2 tags per tree node (opening and closing tags).\r
\r
+\r
+static int bits8 (int t ) {\r
+ int r = bits(t);\r
+ if (r <= 8)\r
+ return 8;\r
+ else if (r <= 16)\r
+ return 16;\r
+ else \r
+ return r;\r
}\r
\r
-#define STARTTIMER() do { \\r
- gettimeofday(&tmpv1,NULL); \\r
- read_procmem(mem1); \\r
- } while (0) \\r
\r
-#define STOPTIMER(x) do { \\r
- read_procmem(mem2); \\r
- gettimeofday(&tmpv2,NULL); \\r
- (t##x) = ((tmpv2.tv_sec - tmpv1.tv_sec) * 1000000.0 + \\r
- (tmpv2.tv_usec - tmpv1.tv_usec))/1000.0; \\r
- (c##x)= (c##x)+1; \\r
- } while (0)\r
\r
-#define PRINTTIME(s,x) do { \\r
- std::cerr << (s) << " : " << (t##x) << "ms" << std::endl; \\r
- std::cerr << "Mem use before: " << mem1 << std::endl; \\r
- std::cerr << "Mem use after: " << mem2 << std::endl; \\r
- std::cerr.flush(); \\r
- } while (0) \\r
\r
+static treeNode fast_sibling(bp* Par,treeNode x,TagType tag){\r
\r
-// functions to convert tag positions to the corresponding tree node and viceversa. \r
-// These are implemented in order to be able to change the tree and Tags representations, \r
-// without affecting the code so much.\r
-// Current implementation corresponds to balanced-parentheses representation for\r
-// the tree, and storing 2 tags per tree node (opening and closing tags).\r
+ if (tag == PCDATA_TAG_ID){\r
+ x = x+2;\r
+ return fast_inspect(Par,x)==OP ? x : NULLT;\r
+ } else return fast_next_sibling(Par,x);\r
\r
-// tag position -> tree node\r
-inline treeNode tagpos2node(int t) \r
- {\r
- return (treeNode) t;\r
- }\r
+}\r
+\r
+static bool fast_isleaf(bp* Par,treeNode x){\r
+ return (fast_inspect(Par,x+1) == CP ? true : false);\r
+}\r
+\r
+\r
+inline uint get_field_no_power(uint *A, uint len, uint index) {\r
+ \r
+ register uint i=index*len/W, j=index*len-W*i;\r
+ return (j+len <= W) ? (A[i] << (W-j-len)) >> (W-len) : (A[i] >> j) | (A[i+1] << (WW-j-len)) >> (W-len);\r
+\r
+}\r
\r
-// tree node -> tag position\r
-inline int node2tagpos(treeNode x) \r
+static uint fast_get_field(uint* A,int len, int idx)\r
{\r
- return (int)x;\r
+ uint f1, f2;\r
+ switch (len) {\r
+ case 8:\r
+ return (uint) (((uchar*)A)[idx]);\r
+ case 16:\r
+ f2 = ((unsigned short*)A)[idx];\r
+ f1 = ((unsigned short*)A)[idx+1];\r
+ return (f1 << 16) + f2;\r
+ default:\r
+ return get_field_no_power (A,len,idx);\r
+ };\r
+\r
}\r
\r
-// returns NULLT if the test is true\r
-#define NULLT_IF(x) do { if (x) return NULLT; } while (0)\r
\r
\r
-XMLTree::XMLTree( pb * const par, uint npar, vector<string> * const TN, TagIdMap * const tim, uint *empty_texts_bmp, TagType *tags,\r
- TextCollection * const TC, bool dis_tc)\r
\r
+XMLTree::XMLTree( pb * const par, uint npar, vector<string> * const TN, TagIdMap * const tim, \r
+ uint *empty_texts_bmp, TagType *tags,\r
+ TextCollection * const TC, bool dis_tc)\r
{\r
+ buffer = 0;\r
// creates the data structure for the tree topology\r
Par = (bp *)umalloc(sizeof(bp));\r
- bp_construct(Par, npar, (pb*) par, OPT_DEGREE|0); \r
+ STARTTIMER();\r
+ bp_construct(Par, npar, (pb*) par, OPT_DEGREE|0);\r
+ STOPTIMER(Building);\r
+ PRINTTIME("Building parenthesis struct", Building);\r
+ STARTTIMER();\r
+\r
\r
// creates structure for tags\r
\r
tIdMap = (TagIdMap *) tim;\r
\r
uint max_tag = TN->size() - 1;\r
+ \r
\r
static_bitsequence_builder *bmb = new static_bitsequence_builder_sdarray();\r
alphabet_mapper *am = new alphabet_mapper_none();\r
Tags = new static_sequence_bs((uint*)tags,npar,am,bmb);\r
\r
- cout << "Tags test: " << Tags->test((uint*)tags,npar) << endl;\r
+ //cout << "Tags test: " << Tags->test((uint*)tags,npar) << endl;\r
\r
- tags_blen = bits(max_tag);\r
+ //Ensures that for small tag numbers, we are on an 8bit boundary.\r
+ //Makes tag access way faster with negligeable waste of space.\r
+ tags_blen = bits8(max_tag);\r
+ std::cerr << "Tags blen is " << tags_blen << "\n";\r
tags_len = (uint)npar;\r
tags_fix = new uint[uint_len(tags_blen,tags_len)];\r
for(uint i=0;i<(uint)npar;i++)\r
set_field(tags_fix,tags_blen,i,tags[i]);\r
-\r
delete bmb; \r
free(tags);\r
tags = NULL;\r
+\r
+ STOPTIMER(Building);\r
+ PRINTTIME("Building Tag Structure", Building);\r
\r
Text = (TextCollection*) TC;\r
\r
\r
EBVector = new static_bitsequence_rrr02(empty_texts_bmp,npar,32);\r
+ //EBVector = new static_bitsequence_sdarray(empty_texts_bmp,npar);\r
free(empty_texts_bmp);\r
empty_texts_bmp = NULL;\r
\r
\r
disable_tc = dis_tc;\r
+ stream = NULL;\r
+ stream_fd = 0;\r
+ std::cerr << "Number of distinct tags " << TagName->size() << "\n";\r
+ //std::cerr.flush();\r
}\r
\r
\r
\r
delete EBVector;\r
EBVector = NULL;\r
-\r
+ if (stream != NULL){\r
+ fclose(stream);\r
+ stream = NULL;\r
+ stream_fd = 0;\r
+ };\r
\r
}\r
\r
}\r
\r
// Save: saves XML tree data structure to file. \r
-void XMLTree::Save(int fd) \r
+void XMLTree::Save(int fd, char *filename) \r
{\r
FILE *fp;\r
char filenameaux[1024];\r
\r
// stores the texts \r
if (!disable_tc) {\r
- Text->Save(fp);\r
+ Text->Save(fp, filename);\r
};\r
-\r
-\r
}\r
\r
\r
// Load: loads XML tree data structure from file. Returns\r
// a pointer to the loaded data structure\r
-XMLTree *XMLTree::Load(int fd) \r
+XMLTree *XMLTree::Load(int fd, char *filename, bool load_tc,int sample_factor) \r
{\r
+\r
FILE *fp;\r
char buffer[1024];\r
XMLTree *XML_Tree;\r
int i;\r
\r
-\r
+ buffer[1023] = '\0';\r
\r
fp = fdopen(fd, "r");\r
\r
PRINTTIME("Loading parenthesis struct", Loading);\r
STARTTIMER();\r
\r
- XML_Tree->TagName = new vector<string>();\r
- XML_Tree->tIdMap = new std::unordered_map<string,int>();\r
- \r
- string s;\r
+ XML_Tree->TagName = new std::vector<std::string>();\r
+ XML_Tree->tIdMap = new std::unordered_map<std::string,int>();\r
+ std::string s;\r
int ntags;\r
\r
// Load the tag names\r
ufread(&ntags, sizeof(int), 1, fp);\r
\r
for (i=0; i<ntags;i++) {\r
- char * r = fgets(buffer,1023,fp);\r
- if (r==NULL)\r
+ if (fgets(buffer,1022,fp) != buffer)\r
throw "Cannot read tag list";\r
- s = (const char*) buffer;\r
+ s = buffer;\r
// remove the trailing \n\r
s.erase(s.size()-1); \r
- XML_Tree->TagName->push_back(s);\r
+ XML_Tree->TagName->push_back(s); \r
XML_Tree->tIdMap->insert(std::make_pair(s,i));\r
\r
};\r
// loads the tag structure\r
XML_Tree->Tags = static_sequence::load(fp);\r
ufread(&XML_Tree->tags_blen,sizeof(uint),1,fp);\r
+ std::cerr << "tags_blen is "<< XML_Tree->tags_blen <<"\n"; \r
ufread(&XML_Tree->tags_len,sizeof(uint),1,fp);\r
XML_Tree->tags_fix = new uint[uint_len(XML_Tree->tags_blen,XML_Tree->tags_len)];\r
ufread(XML_Tree->tags_fix,sizeof(uint),uint_len(XML_Tree->tags_blen,XML_Tree->tags_len),fp);\r
\r
// TODO ask francisco about this\r
/// FIXME:UGLY tests!\r
- uint * seq = new uint[XML_Tree->tags_len];\r
- for(uint i=0;i<XML_Tree->tags_len;i++)\r
- seq[i] = get_field(XML_Tree->tags_fix,XML_Tree->tags_blen,i);\r
+ //uint * seq = new uint[XML_Tree->tags_len];\r
+ //for(uint i=0;i<XML_Tree->tags_len;i++)\r
+ // seq[i] = get_field(XML_Tree->tags_fix,XML_Tree->tags_blen,i);\r
//cout << "Tags test: " << XML_Tree->Tags->test(seq,XML_Tree->tags_len) << endl;\r
- XML_Tree->Tags->test(seq,XML_Tree->tags_len);\r
- delete [] seq;\r
+ //XML_Tree->Tags->test(seq,XML_Tree->tags_len);\r
+ //delete [] seq;\r
/// End ugly tests\r
\r
STOPTIMER(Loading);\r
+ std::cerr << (uint_len(XML_Tree->tags_blen,XML_Tree->tags_len)*sizeof(uint))/(1024*1024) << " MB for tag sequence" << std::endl;\r
PRINTTIME("Loading tag struct", Loading);\r
STARTTIMER();\r
\r
// loads the flags\r
\r
ufread(&(XML_Tree->disable_tc), sizeof(bool), 1, fp);\r
-\r
+ if (load_tc) {\r
XML_Tree->EBVector = static_bitsequence_rrr02::load(fp);\r
-\r
+ //XML_Tree->EBVector = static_bitsequence_sdarray::load(fp);\r
\r
STOPTIMER(Loading);\r
PRINTTIME("Loading text bitvector struct", Loading);\r
STARTTIMER();\r
\r
// Not used \r
- int sample_rate_text = 64;\r
// loads the texts\r
if (!XML_Tree->disable_tc){\r
- XML_Tree->Text = TextCollection::Load(fp,sample_rate_text);\r
+ XML_Tree->Text = TextCollection::Load(fp, filename, TextCollection::index_mode_default, sample_factor);\r
}\r
else XML_Tree->Text = NULL;\r
STOPTIMER(Loading);\r
PRINTTIME("Loading TextCollection", Loading);\r
- STARTTIMER();\r
+ STARTTIMER(); \r
+ }\r
+ else {\r
+ XML_Tree->EBVector = NULL;\r
+ XML_Tree->Text = NULL;\r
+ XML_Tree->disable_tc = true;\r
+ };\r
\r
+ XML_Tree->stream = NULL;\r
+ XML_Tree->stream_fd = 0;\r
+ \r
return XML_Tree;\r
}\r
\r
\r
-// root(): returns the tree root.\r
-inline treeNode XMLTree::Root() \r
- {\r
- return 0; //root_node(Par);\r
- }\r
\r
// SubtreeSize(x): the number of nodes (and attributes) in the subtree of node x.\r
int XMLTree::SubtreeSize(treeNode x) \r
int XMLTree::SubtreeTags(treeNode x, TagType tag) \r
{\r
if (x == Root())\r
- x = first_child(Par,x);\r
+ x = fast_first_child(Par,x);\r
\r
\r
int s = x + 2*subtree_size(Par, x) - 1;\r
\r
- return Tags->rank(tag, s) - Tags->rank(tag, node2tagpos(x)-1);\r
+ return (Tags->rank(tag, s) - Tags->rank(tag, node2tagpos(x)-1))+1;\r
+ }\r
+int XMLTree::SubtreeElements(treeNode x) \r
+ {\r
+ \r
+ int size = subtree_size(Par,x);\r
+ if (x == Root()){\r
+ x = fast_first_child(Par,x);\r
+ size = size - 1;\r
+ };\r
+\r
+ int s = x + 2*size - 1;\r
+ int ntext = Tags->rank(PCDATA_TAG_ID, s) - Tags->rank(PCDATA_TAG_ID, node2tagpos(x)-1);\r
+ size = size - ntext;\r
+ treeNode fin = fast_find_close(Par,x);\r
+ treeNode y = Tags->select_next(ATTRIBUTE_TAG_ID,node2tagpos(x));\r
+ while (y != NULLT && y < fin){\r
+ size -= SubtreeSize(y);\r
+ y = Tags->select_next(ATTRIBUTE_TAG_ID,node2tagpos(y));\r
+ };\r
+ return size; \r
}\r
\r
// IsLeaf(x): returns whether node x is leaf or not. In the succinct representation\r
// this is just a bit inspection.\r
bool XMLTree::IsLeaf(treeNode x) \r
{\r
- return isleaf(Par, x);\r
+ NULLT_IF(x==NULLT);\r
+ return fast_isleaf(Par, x);\r
} \r
\r
// IsAncestor(x,y): returns whether node x is ancestor of node y.\r
bool XMLTree::IsAncestor(treeNode x, treeNode y) \r
{\r
- return is_ancestor(Par, x, y);\r
+ return fast_is_ancestor(Par, x, y);\r
}\r
\r
// IsChild(x,y): returns whether node x is parent of node y.\r
bool XMLTree::IsChild(treeNode x, treeNode y) \r
{\r
- if (!is_ancestor(Par, x, y)) return false;\r
+ if (!fast_is_ancestor(Par, x, y)) return false;\r
return depth(Par, x) == (depth(Par, y) + 1);\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
return postorder_rank(Par, x);\r
}\r
-\r
+/*\r
// Tag(x): returns the tag identifier of node x.\r
TagType XMLTree::Tag(treeNode x) \r
{\r
- return get_field(tags_fix,tags_blen,node2tagpos(x));\r
+ return fast_get_field(tags_fix,tags_blen,node2tagpos(x));\r
}\r
-\r
+*/\r
// DocIds(x): returns the range of text identifiers that descend from node x.\r
// returns {NULLT, NULLT} when there are no texts descending from x.\r
range XMLTree::DocIds(treeNode x) \r
{\r
- range r;\r
- if (x == NULLT) {\r
- r.min = NULLT;\r
- r.max = NULLT;\r
- return r;\r
- };\r
- \r
- \r
- int min = EBVector->rank1(x-1); \r
- int max = EBVector->rank1(x+2*subtree_size(Par, x)-2); \r
- if (min==max) { // range is empty, no texts within the subtree of x\r
- r.min = NULLT;\r
- r.max = NULLT;\r
- }\r
- else { // the range is non-empty, there are texts within the subtree of x\r
- r.min = min+1;\r
- r.max = max;\r
- }\r
- return r;\r
-\r
+ range r;\r
+ if (x == NULLT) {\r
+ r.min = NULLT;\r
+ r.max = NULLT;\r
+ return r;\r
+ };\r
+ int min = EBVector->rank1(x-1); \r
+ int max = EBVector->rank1(x+2*subtree_size(Par, x)-2); \r
+ if (min==max) { // range is empty, no texts within the subtree of x\r
+ r.min = NULLT;\r
+ r.max = NULLT;\r
+ }\r
+ else { // the range is non-empty, there are texts within the subtree of x\r
+ r.min = min+1;\r
+ r.max = max;\r
+ }\r
+ return r;\r
}\r
\r
// Parent(x): returns the parent node of node x.\r
+/*\r
treeNode XMLTree::Parent(treeNode x) \r
{\r
if (x == Root())\r
return NULLT;\r
else\r
- return parent(Par, x);\r
- }\r
+ return parent(Par, x);;\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
treeNode XMLTree::FirstChild(treeNode x) \r
{\r
NULLT_IF(x==NULLT);\r
- return first_child(Par, x);\r
+ return fast_first_child(Par, x);\r
}\r
-\r
+*/\r
+/*\r
treeNode XMLTree::FirstElement(treeNode x) \r
{\r
NULLT_IF(x==NULLT);\r
- treeNode fc = first_child(Par, x);\r
- //<$> is 2\r
- return ((fc == NULLT || Tag(fc) != PCDATA_TAG_ID) ? fc : next_sibling(Par,fc));\r
-\r
+ x = fast_first_child(Par, x);\r
+ NULLT_IF(x == NULLT);\r
+ switch (Tag(x)){\r
+ \r
+ case PCDATA_TAG_ID:\r
+ x = x+2;\r
+ return (fast_inspect(Par,x)==OP)? x : NULLT;\r
+ \r
+ case ATTRIBUTE_TAG_ID: \r
+ x = fast_next_sibling(Par,x);\r
+ if (x != NULLT && Tag(x) == PCDATA_TAG_ID){\r
+ x = x+2;\r
+ return (fast_inspect(Par,x)==OP)? x : NULLT;\r
+ } \r
+ else return x; \r
+ default:\r
+ return x;\r
+ }\r
}\r
-\r
+*//*\r
treeNode XMLTree::NextElement(treeNode x) \r
{\r
- NULLT_IF(x==NULLT);\r
- treeNode ns = next_sibling(Par, x);\r
- return ((ns == NULLT || Tag(ns) != PCDATA_TAG_ID) ? ns : next_sibling(Par,ns));\r
-}\r
+ NULLT_IF(x==NULLT);\r
+ x = fast_next_sibling(Par, x);\r
+ NULLT_IF(x == NULLT); \r
+ if (Tag(x) == PCDATA_TAG_ID){\r
+ x = x+2;\r
+ return (fast_inspect(Par,x)==OP)? x : NULLT;\r
+ }\r
+ else return x; \r
+ }*/\r
\r
// LastChild(x): returns the last child of node x.\r
treeNode XMLTree::LastChild(treeNode x)\r
{\r
- NULLT_IF(x==NULLT || x == Root() || isleaf(Par,x));\r
- return find_open(Par, find_close(Par, x)-1);\r
+ NULLT_IF(x == NULLT || fast_isleaf(Par,x));\r
+ return find_open(Par, fast_find_close(Par, x)-1);\r
}\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
- return next_sibling(Par, x);\r
+ x = fast_find_close(Par,x)+1;\r
+ return (fast_inspect(Par,x) == CP ? NULLT : x);\r
}\r
+*/\r
\r
// PrevSibling(x): returns the previous sibling of node x, assuming it exists.\r
treeNode XMLTree::PrevSibling(treeNode x) \r
{\r
- NULLT_IF(x==NULLT || x == Root());\r
+ NULLT_IF(x==NULLT);\r
return prev_sibling(Par, x);\r
}\r
\r
treeNode XMLTree::TaggedChild(treeNode x, TagType tag) \r
{\r
\r
- NULLT_IF(x==NULLT || isleaf(Par,x));\r
-\r
+ NULLT_IF(x==NULLT || fast_isleaf(Par,x));\r
treeNode child; \r
- child = first_child(Par, x); // starts at first child of node x\r
- if (get_field(tags_fix,tags_blen,node2tagpos(child)) == tag)\r
+ child = fast_first_child(Par, x); // starts at first child of node x\r
+ if (Tag(child) == tag)\r
return child;\r
else\r
- return TaggedFollSibling(child,tag);\r
+ return TaggedFollowingSibling(child,tag);\r
}\r
\r
// TaggedSibling(x,tag): returns the first sibling of node x tagged tag, or NULLT if there is none.\r
-treeNode XMLTree::TaggedFollSibling(treeNode x, TagType tag)\r
+treeNode XMLTree::TaggedFollowingSibling(treeNode x, TagType tag)\r
{\r
NULLT_IF(x==NULLT);\r
- treeNode sibling = next_sibling(Par, x); \r
+ treeNode sibling = fast_next_sibling(Par, x);\r
+ TagType ctag;\r
while (sibling != NULLT) {\r
- if (get_field(tags_fix,tags_blen,node2tagpos(sibling)) == tag) // current sibling is labeled with tag of interest\r
+ ctag = Tag(sibling);\r
+ if (ctag == tag) // current sibling is labeled with tag of interest\r
return sibling; \r
- sibling = next_sibling(Par, sibling); // OK, let's try with the next sibling\r
+ sibling = fast_sibling(Par, sibling, ctag); // OK, let's try with the next sibling\r
}\r
return NULLT; // no such sibling was found \r
}\r
\r
-treeNode XMLTree::SelectChild(treeNode x, std::unordered_set<int> *tags)\r
+treeNode XMLTree::SelectChild(treeNode x, TagIdSet *tags)\r
{\r
\r
- NULLT_IF(x==NULLT || isleaf(Par,x));\r
+ NULLT_IF(x==NULLT || fast_isleaf(Par,x));\r
int i;\r
- treeNode child = first_child(Par, x); \r
- TagType t = get_field(tags_fix, tags_blen, node2tagpos(child));\r
- std::unordered_set<int>::const_iterator tagit = tags->find(t);\r
- if (tagit != tags->end()) return child; \r
- return SelectFollSibling(child,tags);\r
+ treeNode child = fast_first_child(Par, x); \r
+ TagType t;\r
+ while (child != NULLT) {\r
+ t = Tag(child);\r
+ if (tags->find(t) != tags->end()) return child;\r
+ child = fast_sibling(Par, child,t);\r
+ }\r
+ return NULLT; \r
}\r
\r
\r
-treeNode XMLTree::SelectFollSibling(treeNode x, std::unordered_set<int> *tags)\r
+treeNode XMLTree::SelectFollowingSibling(treeNode x, TagIdSet *tags)\r
{\r
\r
NULLT_IF(x==NULLT);\r
int i;\r
TagType t;\r
- treeNode sibling = next_sibling(Par, x);\r
- std::unordered_set<int>::const_iterator tagit;\r
+ treeNode sibling = fast_next_sibling(Par, x);\r
while (sibling != NULLT) {\r
- t = get_field(tags_fix, tags_blen, node2tagpos(sibling));\r
- tagit = tags->find(t);\r
- if (tagit != tags->end()) return sibling;\r
- sibling = next_sibling(Par, sibling);\r
+ t = Tag(sibling);\r
+ if (tags->find(t) != tags->end()) return sibling;\r
+ sibling = fast_sibling(Par, sibling,t);\r
}\r
return NULLT; \r
}\r
\r
\r
-// TaggedDesc(x,tag): returns the first node tagged tag with larger preorder than x and within\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
-treeNode XMLTree::TaggedDesc(treeNode x, TagType tag) \r
+/*\r
+treeNode XMLTree::TaggedDescendant(treeNode x, TagType tag) \r
{\r
- NULLT_IF(x==NULLT || isleaf(Par,x));\r
+ //NULLT_IF(x==NULLT || fast_isleaf(Par,x));\r
\r
int s = (int) Tags->select_next(tag,node2tagpos(x));\r
NULLT_IF (s == -1);\r
\r
treeNode y = tagpos2node(s); // transforms the tag position into a node position\r
\r
- return (is_ancestor(Par,x,y) ? y : NULLT);\r
+ return (fast_is_ancestor(Par,x,y) ? y : NULLT);\r
}\r
+*/\r
\r
-\r
-treeNode XMLTree::SelectDesc(treeNode x, std::unordered_set<int> *tags)\r
+treeNode XMLTree::SelectDescendant(treeNode x, TagIdSet *tags)\r
{\r
- NULLT_IF (x ==NULLT || isleaf(Par,x));\r
+ NULLT_IF (x ==NULLT || fast_isleaf(Par,x));\r
int i;\r
treeNode min = NULLT;\r
- treeNode fc = first_child(Par,x);\r
+ treeNode fc = fast_first_child(Par,x);\r
treeNode aux;\r
- std::unordered_set<int>::const_iterator tagit;\r
+ TagIdSet::const_iterator tagit;\r
for (tagit = tags->begin(); tagit != tags->end(); tagit++) {\r
- aux = TaggedDesc(x, (TagType) *tagit);\r
+ aux = TaggedDescendant(x, (TagType) *tagit);\r
if (aux == fc) return fc;\r
if (aux == NULLT) continue;\r
if ((min == NULLT) || (aux < min)) min = aux;\r
\r
// TaggedPrec(x,tag): returns the first node tagged tag with smaller preorder than x and not an\r
// ancestor of x. Returns NULLT if there is none.\r
-treeNode XMLTree::TaggedPrec(treeNode x, TagType tag) \r
+treeNode XMLTree::TaggedPreceding(treeNode x, TagType tag) \r
{ \r
int r, s;\r
treeNode node_s, root;\r
s = (int)Tags->select(tag, r);\r
root = root_node(Par);\r
node_s = tagpos2node(s);\r
- while (is_ancestor(Par, node_s, x) && (node_s!=root)) { // the one that we found is an ancestor of x\r
+ while (fast_is_ancestor(Par, node_s, x) && (node_s!=root)) { // the one that we found is an ancestor of x\r
r--;\r
if (r==0) return NULLT; // there is no such node\r
s = (int)Tags->select(tag, r); // we should use select_prev instead when provided\r
\r
// TaggedFoll(x,tag): returns the first node tagged tag with larger preorder than x and not in\r
// the subtree of x. Returns NULLT if there is none.\r
-treeNode XMLTree::TaggedFoll(treeNode x, TagType tag)\r
+treeNode XMLTree::TaggedFollowing(treeNode x, TagType tag)\r
{\r
- NULLT_IF (x ==NULLT || x == Root());\r
- \r
- return tagpos2node(Tags->select_next(tag,find_close(Par, x)));\r
+ NULLT_IF (x ==NULLT || x == Root()); \r
+ return tagpos2node(Tags->select_next(tag,fast_find_close(Par, x)));\r
\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
-treeNode XMLTree::TaggedFollBelow(treeNode x, TagType tag, treeNode root)\r
+/*\r
+treeNode XMLTree::TaggedFollowingBelow(treeNode x, TagType tag, treeNode ancestor)\r
{\r
+ // NULLT_IF (x == NULLT || x == Root() || x == ancestor); \r
\r
- NULLT_IF (x == NULLT || x == Root());\r
+ //Special optimisation, test for the following sibling first\r
+ treeNode close = fast_find_close(Par, x);\r
+ treeNode s = tagpos2node(Tags->select_next(tag, close));\r
\r
- treeNode s = tagpos2node(Tags->select_next(tag, find_close(Par, x)));\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
+\r
+ NULLT_IF (x == NULLT || x == Root());\r
\r
- if (root == Root()) return s;\r
- NULLT_IF (s == NULLT || s >= find_close(Par, root));\r
+ treeNode s = tagpos2node(Tags->select_next(tag, fast_find_close(Par, x))); \r
+ NULLT_IF (s == NULLT || s >= closing);\r
\r
return s;\r
} \r
\r
/* Here we inline TaggedFoll to find the min globally, and only at the end\r
we check if the min is below the context node */\r
-treeNode XMLTree::SelectFollBelow(treeNode x, std::unordered_set<int> *tags, treeNode root)\r
+treeNode XMLTree::SelectFollowingBelow(treeNode x, TagIdSet *tags, treeNode ancestor)\r
{\r
\r
NULLT_IF(x==NULLT || x==Root());\r
+\r
+ treeNode close = fast_find_close(Par,x);\r
+ treeNode ns = close+1;\r
+ if ( (fast_inspect(Par,ns) == OP) && (tags->find(Tag(ns)) != tags->end()))\r
+ return ns;\r
+\r
int i;\r
treeNode min = NULLT;\r
- treeNode ns = next_sibling(Par, x);\r
treeNode aux;\r
- std::unordered_set<int>::const_iterator tagit;\r
+ \r
+\r
+ TagIdSet::const_iterator tagit;\r
for (tagit = tags->begin(); tagit != tags->end(); tagit++) {\r
\r
- aux = tagpos2node(Tags->select_next(*tagit, find_close(Par, x)));\r
+ aux = tagpos2node(Tags->select_next(*tagit, close));\r
+ \r
+ // The next sibling of x is guaranteed to be below ctx\r
+ // and is the node with lowest preorder which is after ctx.\r
+ // if we find it, we return early; \r
+ if (aux == NULLT) continue;\r
+ if ((min == NULLT) || (aux < min)) min = aux;\r
+ };\r
+ \r
+ // found the smallest node in preorder which is after x.\r
+ // if ctx is the root node, just return what we found.\r
+\r
+ if (ancestor == Root()) return min;\r
+ // else check whether if is in below the ctx node\r
+\r
+ NULLT_IF (min == NULLT || min >= fast_find_close(Par, ancestor));\r
+ \r
+ return min;\r
+ \r
+ }\r
+treeNode XMLTree::SelectFollowingBefore(treeNode x, TagIdSet *tags, treeNode closing)\r
+ {\r
+\r
+ NULLT_IF(x==NULLT || x==Root());\r
+ int i;\r
+ treeNode min = NULLT;\r
+ treeNode ns = fast_next_sibling(Par, x);\r
+ treeNode close = ns - 1;\r
+ treeNode aux;\r
+ TagIdSet::const_iterator tagit;\r
+ for (tagit = tags->begin(); tagit != tags->end(); tagit++) {\r
+\r
+ aux = tagpos2node(Tags->select_next(*tagit, close));\r
\r
// The next sibling of x is guaranteed to be below ctx\r
// and is the node with lowest preorder which is after ctx.\r
// found the smallest node in preorder which is after x.\r
// if ctx is the root node, just return what we found.\r
\r
- if (root == Root()) return min;\r
- // else check whether if is in below the ctx node\r
-\r
- NULLT_IF (min == NULLT || min >= find_close(Par, root));\r
+ NULLT_IF (min == NULLT || min >= closing);\r
\r
return min;\r
\r
\r
treeNode s = parent(Par, x), r = Root();\r
while (s != r) {\r
- if (get_field(tags_fix,tags_blen,node2tagpos(s)) /*Tags->access(node2tagpos(s))*/ == tag) return s;\r
+ if (Tag(s) == tag) return s;\r
s = parent(Par, s);\r
}\r
return NULLT;\r
// seems faster than testing EBVector->access(x);\r
\r
if (tag == PCDATA_TAG_ID || tag == ATTRIBUTE_DATA_TAG_ID)\r
+ //if (EBVector->access(x))\r
return (DocID) (EBVector->rank1(x)-1); //-1 because document ids start from 0\r
else \r
return (DocID) NULLT;\r
\r
}\r
-\r
+// MyText(x): returns the document identifier of the text below node x, \r
+// or NULLT if x is not a leaf node or the text is empty. Assumes Doc \r
+// ids start from 0.\r
+DocID XMLTree::MyTextUnsafe(treeNode x) \r
+{\r
+ return (DocID) (EBVector->rank1(x)-1); //-1 because document ids start from 0\r
+}\r
// TextXMLId(d): returns the preorder of document with identifier d in the tree consisting of\r
// all tree nodes and all text nodes. Assumes that the tree root has preorder 1.\r
int XMLTree::TextXMLId(DocID d) \r
unsigned char *s;\r
if ( tagid < 0 || tagid >= TagName->size())\r
return (unsigned char *) "<INVALID TAG>";\r
- strcpy((char *)s, TagName->at(tagid).c_str());\r
+ strcpy((char *)s, (*TagName)[tagid].c_str());\r
\r
return (s == NULL ? (unsigned char*) "<INVALID TAG>" : s);\r
}\r
if ( tagid < 0 || tagid >= TagName->size())\r
return (unsigned char *) "<INVALID TAG>";\r
\r
- return (const unsigned char *) TagName->at(tagid).c_str();\r
+ return (const unsigned char *) (*TagName)[tagid].c_str();\r
\r
}\r
\r
TagType id = XMLTree::GetTagId(tagname);\r
if (id == NULLT) {\r
string s = (char *) tagname; \r
- REGISTER_TAG(TagName,tIdMap,s);\r
- \r
+ REGISTER_TAG(TagName,tIdMap,s); \r
};\r
\r
return id;\r
}\r
\r
\r
+treeNode XMLTree::Closing(treeNode x) {\r
+ return fast_find_close(Par,x); \r
+}\r
+bool XMLTree::IsOpen(treeNode x) { return fast_inspect(Par,x); }\r
+\r
+//WARNING this uses directly the underlying implementation for plain text\r
+\r
+\r
+void XMLTree::Print(int fd,treeNode x, bool no_text){\r
+ \r
+ int newfd = dup(fd);\r
+ stream = fdopen(newfd,"wa");\r
+ if (stream == 0){\r
+ perror(NULL);\r
+ return;\r
+ };\r
+\r
+ if (buffer == 0)\r
+ buffer = new string();\r
+\r
+ FILE* fp = stream;\r
+ treeNode fin = fast_find_close(Par,x);\r
+ treeNode n = x;\r
+ TagType tag = Tag(n);\r
+ uchar * tagstr;\r
+ range r = DocIds(x);\r
+ treeNode first_idx;\r
+ treeNode first_text = (tag == PCDATA_TAG_ID ? x : ParentNode(r.min-1));\r
+ treeNode first_att = NULLT;\r
+ \r
+ if (first_att == NULLT)\r
+ first_idx = first_text;\r
+ else if (first_text == NULLT)\r
+ first_idx = first_att;\r
+ else\r
+ first_idx = min(first_att,first_text);\r
+ \r
+ uchar * current_text=NULL;\r
+ if (first_idx != NULLT)\r
+ current_text = GetText(MyText(first_idx));\r
+ size_t read = 0;\r
+ std::vector<uchar*> st;\r
+ while (n <= fin){\r
+ if (fast_inspect(Par,n)){\r
+ if (tag == PCDATA_TAG_ID ) { \r
+\r
+ if (no_text)\r
+ myfputs("<$/>",fp);\r
+ else{\r
+ read = myfprintf((const char*) current_text, fp);\r
+ current_text += (read + 1);\r
+ };\r
+ n+=2; // skip closing $\r
+ tag = Tag(n);\r
+ \r
+ }\r
+ else {\r
+ myfputc('<',fp);\r
+ tagstr = (uchar*) GetTagNameByRef(tag);\r
+ myfputs((const char*) tagstr ,fp);\r
+ n++;\r
+ if (fast_inspect(Par,n)) {\r
+ st.push_back(tagstr);\r
+ tag = Tag(n);\r
+ if (tag == ATTRIBUTE_TAG_ID){\r
+ n++;\r
+ if (no_text) myfputs("><@@>",fp);\r
+ while (fast_inspect(Par,n)){\r
+ if (no_text) {\r
+ myfputc('<',fp);\r
+ myfputs((const char*) &(GetTagNameByRef(Tag(n))[3]),fp);\r
+ myfputc('>',fp);\r
+ myfputs("<$@/></",fp);\r
+ myfputs((const char*) &(GetTagNameByRef(Tag(n))[3]),fp);\r
+ myfputc('>',fp);\r
+ n+= 4;\r
+ }\r
+ else {\r
+ myfputc(' ',fp);\r
+ myfputs((const char*) &(GetTagNameByRef(Tag(n))[3]),fp);\r
+ n++;\r
+ myfputs("=\"",fp);\r
+ read = myfprintf((const char*) current_text,fp);\r
+ current_text += (read + 1);\r
+ myfputc('"',fp);\r
+ n+=3;\r
+ }\r
+ };\r
+ if (no_text) \r
+ myfputs("</@@>",fp);\r
+ else myfputc('>',fp);\r
+ n++;\r
+ tag=Tag(n);\r
+ }\r
+ else {\r
+ myfputc('>',fp);\r
+ };\r
+ }\r
+ else {// <foo /> tag\r
+ myfputs("/>",fp);\r
+ n++;\r
+ tag=Tag(n); \r
+ }; \r
+ };\r
+ }\r
+ else\r
+ do {\r
+ myfputs("</",fp);\r
+ myfputs((const char*)st.back(),fp);\r
+ myfputc('>', fp);\r
+ st.pop_back();\r
+ n++;\r
+ }while (!fast_inspect(Par,n) && !st.empty());\r
+ tag=Tag(n);\r
+ };\r
+ myfputc('\n',fp);\r
+ mybufferflush(fp);\r
+ //fflush(fp);\r
+ fclose(fp);\r
+}\r
projects / SXSI / XMLTree.git / blobdiff