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-rw-r--r--utils/tree.h700
1 files changed, 700 insertions, 0 deletions
diff --git a/utils/tree.h b/utils/tree.h
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index 00000000..8070f828
--- /dev/null
+++ b/utils/tree.h
@@ -0,0 +1,700 @@
+/*
+ * tree.h
+ *
+ * Created on: May 23, 2013
+ * Author: lijunhui
+ */
+
+#ifndef TREE_H_
+#define TREE_H_
+
+#include <assert.h>
+#include <stdio.h>
+
+#include <string>
+#include <vector>
+
+using namespace std;
+
+struct STreeItem {
+ STreeItem(const char *pszTerm) {
+ m_pszTerm = new char[strlen(pszTerm) + 1];
+ strcpy(m_pszTerm, pszTerm);
+
+ m_ptParent = NULL;
+ m_iBegin = -1;
+ m_iEnd = -1;
+ m_iHeadChild = -1;
+ m_iHeadWord = -1;
+ m_iBrotherIndex = -1;
+ }
+ ~STreeItem() {
+ delete[] m_pszTerm;
+ for (size_t i = 0; i < m_vecChildren.size(); i++) delete m_vecChildren[i];
+ }
+ int fnAppend(STreeItem *ptChild) {
+ m_vecChildren.push_back(ptChild);
+ ptChild->m_iBrotherIndex = m_vecChildren.size() - 1;
+ ptChild->m_ptParent = this;
+ return m_vecChildren.size() - 1;
+ }
+ int fnGetChildrenNum() { return m_vecChildren.size(); }
+
+ bool fnIsPreTerminal(void) {
+ int I;
+ if (this == NULL || m_vecChildren.size() == 0) return false;
+
+ for (I = 0; I < m_vecChildren.size(); I++)
+ if (m_vecChildren[I]->m_vecChildren.size() > 0) return false;
+
+ return true;
+ }
+
+ public:
+ char *m_pszTerm;
+
+ vector<STreeItem *> m_vecChildren; // children items
+ STreeItem *m_ptParent; // the parent item
+
+ int m_iBegin;
+ int m_iEnd; // the node span words[m_iBegin, m_iEnd]
+ int m_iHeadChild; // the index of its head child
+ int m_iHeadWord; // the index of its head word
+ int m_iBrotherIndex; // the index in his brothers
+};
+
+struct SGetHeadWord {
+ typedef vector<string> CVectorStr;
+ SGetHeadWord() {}
+ ~SGetHeadWord() {}
+ int fnGetHeadWord(char *pszCFGLeft, CVectorStr vectRight) {
+ // 0 indicating from right to left while 1 indicating from left to right
+ char szaHeadLists[201] = "0";
+
+ /* //head rules for Egnlish
+ if( strcmp( pszCFGLeft, "ADJP" ) == 0 )
+ strcpy( szaHeadLists, "0NNS 0QP 0NN 0$ 0ADVP 0JJ 0VBN 0VBG 0ADJP
+ 0JJR 0NP 0JJS 0DT 0FW 0RBR 0RBS 0SBAR 0RB 0" );
+ else if( strcmp( pszCFGLeft, "ADVP" ) == 0 )
+ strcpy( szaHeadLists, "1RB 1RBR 1RBS 1FW 1ADVP 1TO 1CD 1JJR 1JJ 1IN
+ 1NP 1JJS 1NN 1" );
+ else if( strcmp( pszCFGLeft, "CONJP" ) == 0 )
+ strcpy( szaHeadLists, "1CC 1RB 1IN 1" );
+ else if( strcmp( pszCFGLeft, "FRAG" ) == 0 )
+ strcpy( szaHeadLists, "1" );
+ else if( strcmp( pszCFGLeft, "INTJ" ) == 0 )
+ strcpy( szaHeadLists, "0" );
+ else if( strcmp( pszCFGLeft, "LST" ) == 0 )
+ strcpy( szaHeadLists, "1LS 1: 1CLN 1" );
+ else if( strcmp( pszCFGLeft, "NAC" ) == 0 )
+ strcpy( szaHeadLists, "0NN 0NNS 0NNP 0NNPS 0NP 0NAC 0EX 0$ 0CD 0QP
+ 0PRP 0VBG 0JJ 0JJS 0JJR 0ADJP 0FW 0" );
+ else if( strcmp( pszCFGLeft, "PP" ) == 0 )
+ strcpy( szaHeadLists, "1IN 1TO 1VBG 1VBN 1RP 1FW 1" );
+ else if( strcmp( pszCFGLeft, "PRN" ) == 0 )
+ strcpy( szaHeadLists, "1" );
+ else if( strcmp( pszCFGLeft, "PRT" ) == 0 )
+ strcpy( szaHeadLists, "1RP 1" );
+ else if( strcmp( pszCFGLeft, "QP" ) == 0 )
+ strcpy( szaHeadLists, "0$ 0IN 0NNS 0NN 0JJ 0RB 0DT 0CD 0NCD 0QP 0JJR
+ 0JJS 0" );
+ else if( strcmp( pszCFGLeft, "RRC" ) == 0 )
+ strcpy( szaHeadLists, "1VP 1NP 1ADVP 1ADJP 1PP 1" );
+ else if( strcmp( pszCFGLeft, "S" ) == 0 )
+ strcpy( szaHeadLists, "0TO 0IN 0VP 0S 0SBAR 0ADJP 0UCP 0NP 0" );
+ else if( strcmp( pszCFGLeft, "SBAR" ) == 0 )
+ strcpy( szaHeadLists, "0WHNP 0WHPP 0WHADVP 0WHADJP 0IN 0DT 0S 0SQ
+ 0SINV 0SBAR 0FRAG 0" );
+ else if( strcmp( pszCFGLeft, "SBARQ" ) == 0 )
+ strcpy( szaHeadLists, "0SQ 0S 0SINV 0SBARQ 0FRAG 0" );
+ else if( strcmp( pszCFGLeft, "SINV" ) == 0 )
+ strcpy( szaHeadLists, "0VBZ 0VBD 0VBP 0VB 0MD 0VP 0S 0SINV 0ADJP 0NP
+ 0" );
+ else if( strcmp( pszCFGLeft, "SQ" ) == 0 )
+ strcpy( szaHeadLists, "0VBZ 0VBD 0VBP 0VB 0MD 0VP 0SQ 0" );
+ else if( strcmp( pszCFGLeft, "UCP" ) == 0 )
+ strcpy( szaHeadLists, "1" );
+ else if( strcmp( pszCFGLeft, "VP" ) == 0 )
+ strcpy( szaHeadLists, "0TO 0VBD 0VBN 0MD 0VBZ 0VB 0VBG 0VBP 0VP
+ 0ADJP 0NN 0NNS 0NP 0" );
+ else if( strcmp( pszCFGLeft, "WHADJP" ) == 0 )
+ strcpy( szaHeadLists, "0CC 0WRB 0JJ 0ADJP 0" );
+ else if( strcmp( pszCFGLeft, "WHADVP" ) == 0 )
+ strcpy( szaHeadLists, "1CC 1WRB 1" );
+ else if( strcmp( pszCFGLeft, "WHNP" ) == 0 )
+ strcpy( szaHeadLists, "0WDT 0WP 0WP$ 0WHADJP 0WHPP 0WHNP 0" );
+ else if( strcmp( pszCFGLeft, "WHPP" ) == 0 )
+ strcpy( szaHeadLists, "1IN 1TO FW 1" );
+ else if( strcmp( pszCFGLeft, "NP" ) == 0 )
+ strcpy( szaHeadLists, "0NN NNP NNS NNPS NX POS JJR 0NP 0$ ADJP PRN
+ 0CD 0JJ JJS RB QP 0" );
+ */
+
+ if (strcmp(pszCFGLeft, "ADJP") == 0)
+ strcpy(szaHeadLists, "0ADJP JJ 0AD NN CS 0");
+ else if (strcmp(pszCFGLeft, "ADVP") == 0)
+ strcpy(szaHeadLists, "0ADVP AD 0");
+ else if (strcmp(pszCFGLeft, "CLP") == 0)
+ strcpy(szaHeadLists, "0CLP M 0");
+ else if (strcmp(pszCFGLeft, "CP") == 0)
+ strcpy(szaHeadLists, "0DEC SP 1ADVP CS 0CP IP 0");
+ else if (strcmp(pszCFGLeft, "DNP") == 0)
+ strcpy(szaHeadLists, "0DNP DEG 0DEC 0");
+ else if (strcmp(pszCFGLeft, "DVP") == 0)
+ strcpy(szaHeadLists, "0DVP DEV 0");
+ else if (strcmp(pszCFGLeft, "DP") == 0)
+ strcpy(szaHeadLists, "1DP DT 1");
+ else if (strcmp(pszCFGLeft, "FRAG") == 0)
+ strcpy(szaHeadLists, "0VV NR NN 0");
+ else if (strcmp(pszCFGLeft, "INTJ") == 0)
+ strcpy(szaHeadLists, "0INTJ IJ 0");
+ else if (strcmp(pszCFGLeft, "LST") == 0)
+ strcpy(szaHeadLists, "1LST CD OD 1");
+ else if (strcmp(pszCFGLeft, "IP") == 0)
+ strcpy(szaHeadLists, "0IP VP 0VV 0");
+ // strcpy( szaHeadLists, "0VP 0VV 1IP 0" );
+ else if (strcmp(pszCFGLeft, "LCP") == 0)
+ strcpy(szaHeadLists, "0LCP LC 0");
+ else if (strcmp(pszCFGLeft, "NP") == 0)
+ strcpy(szaHeadLists, "0NP NN NT NR QP 0");
+ else if (strcmp(pszCFGLeft, "PP") == 0)
+ strcpy(szaHeadLists, "1PP P 1");
+ else if (strcmp(pszCFGLeft, "PRN") == 0)
+ strcpy(szaHeadLists, "0 NP IP VP NT NR NN 0");
+ else if (strcmp(pszCFGLeft, "QP") == 0)
+ strcpy(szaHeadLists, "0QP CLP CD OD 0");
+ else if (strcmp(pszCFGLeft, "VP") == 0)
+ strcpy(szaHeadLists, "1VP VA VC VE VV BA LB VCD VSB VRD VNV VCP 1");
+ else if (strcmp(pszCFGLeft, "VCD") == 0)
+ strcpy(szaHeadLists, "0VCD VV VA VC VE 0");
+ if (strcmp(pszCFGLeft, "VRD") == 0)
+ strcpy(szaHeadLists, "0VRD VV VA VC VE 0");
+ else if (strcmp(pszCFGLeft, "VSB") == 0)
+ strcpy(szaHeadLists, "0VSB VV VA VC VE 0");
+ else if (strcmp(pszCFGLeft, "VCP") == 0)
+ strcpy(szaHeadLists, "0VCP VV VA VC VE 0");
+ else if (strcmp(pszCFGLeft, "VNV") == 0)
+ strcpy(szaHeadLists, "0VNV VV VA VC VE 0");
+ else if (strcmp(pszCFGLeft, "VPT") == 0)
+ strcpy(szaHeadLists, "0VNV VV VA VC VE 0");
+ else if (strcmp(pszCFGLeft, "UCP") == 0)
+ strcpy(szaHeadLists, "0");
+ else if (strcmp(pszCFGLeft, "WHNP") == 0)
+ strcpy(szaHeadLists, "0WHNP NP NN NT NR QP 0");
+ else if (strcmp(pszCFGLeft, "WHPP") == 0)
+ strcpy(szaHeadLists, "1WHPP PP P 1");
+
+ /* //head rules for GENIA corpus
+ if( strcmp( pszCFGLeft, "ADJP" ) == 0 )
+ strcpy( szaHeadLists, "0NNS 0QP 0NN 0$ 0ADVP 0JJ 0VBN 0VBG 0ADJP
+ 0JJR 0NP 0JJS 0DT 0FW 0RBR 0RBS 0SBAR 0RB 0" );
+ else if( strcmp( pszCFGLeft, "ADVP" ) == 0 )
+ strcpy( szaHeadLists, "1RB 1RBR 1RBS 1FW 1ADVP 1TO 1CD 1JJR 1JJ 1IN
+ 1NP 1JJS 1NN 1" );
+ else if( strcmp( pszCFGLeft, "CONJP" ) == 0 )
+ strcpy( szaHeadLists, "1CC 1RB 1IN 1" );
+ else if( strcmp( pszCFGLeft, "FRAG" ) == 0 )
+ strcpy( szaHeadLists, "1" );
+ else if( strcmp( pszCFGLeft, "INTJ" ) == 0 )
+ strcpy( szaHeadLists, "0" );
+ else if( strcmp( pszCFGLeft, "LST" ) == 0 )
+ strcpy( szaHeadLists, "1LS 1: 1CLN 1" );
+ else if( strcmp( pszCFGLeft, "NAC" ) == 0 )
+ strcpy( szaHeadLists, "0NN 0NNS 0NNP 0NNPS 0NP 0NAC 0EX 0$ 0CD 0QP
+ 0PRP 0VBG 0JJ 0JJS 0JJR 0ADJP 0FW 0" );
+ else if( strcmp( pszCFGLeft, "PP" ) == 0 )
+ strcpy( szaHeadLists, "1IN 1TO 1VBG 1VBN 1RP 1FW 1" );
+ else if( strcmp( pszCFGLeft, "PRN" ) == 0 )
+ strcpy( szaHeadLists, "1" );
+ else if( strcmp( pszCFGLeft, "PRT" ) == 0 )
+ strcpy( szaHeadLists, "1RP 1" );
+ else if( strcmp( pszCFGLeft, "QP" ) == 0 )
+ strcpy( szaHeadLists, "0$ 0IN 0NNS 0NN 0JJ 0RB 0DT 0CD 0NCD 0QP 0JJR
+ 0JJS 0" );
+ else if( strcmp( pszCFGLeft, "RRC" ) == 0 )
+ strcpy( szaHeadLists, "1VP 1NP 1ADVP 1ADJP 1PP 1" );
+ else if( strcmp( pszCFGLeft, "S" ) == 0 )
+ strcpy( szaHeadLists, "0TO 0IN 0VP 0S 0SBAR 0ADJP 0UCP 0NP 0" );
+ else if( strcmp( pszCFGLeft, "SBAR" ) == 0 )
+ strcpy( szaHeadLists, "0WHNP 0WHPP 0WHADVP 0WHADJP 0IN 0DT 0S 0SQ
+ 0SINV 0SBAR 0FRAG 0" );
+ else if( strcmp( pszCFGLeft, "SBARQ" ) == 0 )
+ strcpy( szaHeadLists, "0SQ 0S 0SINV 0SBARQ 0FRAG 0" );
+ else if( strcmp( pszCFGLeft, "SINV" ) == 0 )
+ strcpy( szaHeadLists, "0VBZ 0VBD 0VBP 0VB 0MD 0VP 0S 0SINV 0ADJP 0NP
+ 0" );
+ else if( strcmp( pszCFGLeft, "SQ" ) == 0 )
+ strcpy( szaHeadLists, "0VBZ 0VBD 0VBP 0VB 0MD 0VP 0SQ 0" );
+ else if( strcmp( pszCFGLeft, "UCP" ) == 0 )
+ strcpy( szaHeadLists, "1" );
+ else if( strcmp( pszCFGLeft, "VP" ) == 0 )
+ strcpy( szaHeadLists, "0TO 0VBD 0VBN 0MD 0VBZ 0VB 0VBG 0VBP 0VP
+ 0ADJP 0NN 0NNS 0NP 0" );
+ else if( strcmp( pszCFGLeft, "WHADJP" ) == 0 )
+ strcpy( szaHeadLists, "0CC 0WRB 0JJ 0ADJP 0" );
+ else if( strcmp( pszCFGLeft, "WHADVP" ) == 0 )
+ strcpy( szaHeadLists, "1CC 1WRB 1" );
+ else if( strcmp( pszCFGLeft, "WHNP" ) == 0 )
+ strcpy( szaHeadLists, "0WDT 0WP 0WP$ 0WHADJP 0WHPP 0WHNP 0" );
+ else if( strcmp( pszCFGLeft, "WHPP" ) == 0 )
+ strcpy( szaHeadLists, "1IN 1TO FW 1" );
+ else if( strcmp( pszCFGLeft, "NP" ) == 0 )
+ strcpy( szaHeadLists, "0NN NNP NNS NNPS NX POS JJR 0NP 0$ ADJP PRN
+ 0CD 0JJ JJS RB QP 0" );
+ */
+
+ return fnMyOwnHeadWordRule(szaHeadLists, vectRight);
+ }
+
+ private:
+ int fnMyOwnHeadWordRule(char *pszaHeadLists, CVectorStr vectRight) {
+ char szHeadList[201], *p;
+ char szTerm[101];
+ int J;
+
+ p = pszaHeadLists;
+
+ int iCountRight;
+
+ iCountRight = vectRight.size();
+
+ szHeadList[0] = '\0';
+ while (1) {
+ szTerm[0] = '\0';
+ sscanf(p, "%s", szTerm);
+ if (strlen(szHeadList) == 0) {
+ if (strcmp(szTerm, "0") == 0) {
+ return iCountRight - 1;
+ }
+ if (strcmp(szTerm, "1") == 0) {
+ return 0;
+ }
+
+ sprintf(szHeadList, "%c %s ", szTerm[0], szTerm + 1);
+ p = strstr(p, szTerm);
+ p += strlen(szTerm);
+ } else {
+ if ((szTerm[0] == '0') || (szTerm[0] == '1')) {
+ if (szHeadList[0] == '0') {
+ for (J = iCountRight - 1; J >= 0; J--) {
+ sprintf(szTerm, " %s ", vectRight.at(J).c_str());
+ if (strstr(szHeadList, szTerm) != NULL) return J;
+ }
+ } else {
+ for (J = 0; J < iCountRight; J++) {
+ sprintf(szTerm, " %s ", vectRight.at(J).c_str());
+ if (strstr(szHeadList, szTerm) != NULL) return J;
+ }
+ }
+
+ szHeadList[0] = '\0';
+ } else {
+ strcat(szHeadList, szTerm);
+ strcat(szHeadList, " ");
+
+ p = strstr(p, szTerm);
+ p += strlen(szTerm);
+ }
+ }
+ }
+
+ return 0;
+ }
+};
+
+struct SParsedTree {
+ SParsedTree() { m_ptRoot = NULL; }
+ ~SParsedTree() {
+ if (m_ptRoot != NULL) delete m_ptRoot;
+ }
+ static SParsedTree *fnConvertFromString(const char *pszStr) {
+ if (strcmp(pszStr, "(())") == 0) return NULL;
+ SParsedTree *pTree = new SParsedTree();
+
+ vector<string> vecSyn;
+ fnReadSyntactic(pszStr, vecSyn);
+
+ int iLeft = 1, iRight = 1; //# left/right parenthesis
+
+ STreeItem *pcurrent;
+
+ pTree->m_ptRoot = new STreeItem(vecSyn[1].c_str());
+
+ pcurrent = pTree->m_ptRoot;
+
+ for (size_t i = 2; i < vecSyn.size() - 1; i++) {
+ if (strcmp(vecSyn[i].c_str(), "(") == 0)
+ iLeft++;
+ else if (strcmp(vecSyn[i].c_str(), ")") == 0) {
+ iRight++;
+ if (pcurrent == NULL) {
+ // error
+ fprintf(stderr, "ERROR in ConvertFromString\n");
+ fprintf(stderr, "%s\n", pszStr);
+ return NULL;
+ }
+ pcurrent = pcurrent->m_ptParent;
+ } else {
+ STreeItem *ptNewItem = new STreeItem(vecSyn[i].c_str());
+ pcurrent->fnAppend(ptNewItem);
+ pcurrent = ptNewItem;
+
+ if (strcmp(vecSyn[i - 1].c_str(), "(") != 0 &&
+ strcmp(vecSyn[i - 1].c_str(), ")") != 0) {
+ pTree->m_vecTerminals.push_back(ptNewItem);
+ pcurrent = pcurrent->m_ptParent;
+ }
+ }
+ }
+
+ if (iLeft != iRight) {
+ // error
+ fprintf(stderr, "the left and right parentheses are not matched!");
+ fprintf(stderr, "ERROR in ConvertFromString\n");
+ fprintf(stderr, "%s\n", pszStr);
+ return NULL;
+ }
+
+ return pTree;
+ }
+
+ int fnGetNumWord() { return m_vecTerminals.size(); }
+
+ void fnSetSpanInfo() {
+ int iNextNum = 0;
+ fnSuffixTraverseSetSpanInfo(m_ptRoot, iNextNum);
+ }
+
+ void fnSetHeadWord() {
+ for (size_t i = 0; i < m_vecTerminals.size(); i++)
+ m_vecTerminals[i]->m_iHeadWord = i;
+ SGetHeadWord *pGetHeadWord = new SGetHeadWord();
+ fnSuffixTraverseSetHeadWord(m_ptRoot, pGetHeadWord);
+ delete pGetHeadWord;
+ }
+
+ STreeItem *fnFindNodeForSpan(int iLeft, int iRight, bool bLowest) {
+ STreeItem *pTreeItem = m_vecTerminals[iLeft];
+
+ while (pTreeItem->m_iEnd < iRight) {
+ pTreeItem = pTreeItem->m_ptParent;
+ if (pTreeItem == NULL) break;
+ }
+ if (pTreeItem == NULL) return NULL;
+ if (pTreeItem->m_iEnd > iRight) return NULL;
+
+ assert(pTreeItem->m_iEnd == iRight);
+ if (bLowest) return pTreeItem;
+
+ while (pTreeItem->m_ptParent != NULL &&
+ pTreeItem->m_ptParent->fnGetChildrenNum() == 1)
+ pTreeItem = pTreeItem->m_ptParent;
+
+ return pTreeItem;
+ }
+
+ private:
+ void fnSuffixTraverseSetSpanInfo(STreeItem *ptItem, int &iNextNum) {
+ int I;
+ int iNumChildren = ptItem->fnGetChildrenNum();
+ for (I = 0; I < iNumChildren; I++)
+ fnSuffixTraverseSetSpanInfo(ptItem->m_vecChildren[I], iNextNum);
+
+ if (I == 0) {
+ ptItem->m_iBegin = iNextNum;
+ ptItem->m_iEnd = iNextNum++;
+ } else {
+ ptItem->m_iBegin = ptItem->m_vecChildren[0]->m_iBegin;
+ ptItem->m_iEnd = ptItem->m_vecChildren[I - 1]->m_iEnd;
+ }
+ }
+
+ void fnSuffixTraverseSetHeadWord(STreeItem *ptItem,
+ SGetHeadWord *pGetHeadWord) {
+ int I, iHeadchild;
+
+ if (ptItem->m_vecChildren.size() == 0) return;
+
+ for (I = 0; I < ptItem->m_vecChildren.size(); I++)
+ fnSuffixTraverseSetHeadWord(ptItem->m_vecChildren[I], pGetHeadWord);
+
+ vector<string> vecRight;
+
+ if (ptItem->m_vecChildren.size() == 1)
+ iHeadchild = 0;
+ else {
+ for (I = 0; I < ptItem->m_vecChildren.size(); I++)
+ vecRight.push_back(string(ptItem->m_vecChildren[I]->m_pszTerm));
+
+ iHeadchild = pGetHeadWord->fnGetHeadWord(ptItem->m_pszTerm, vecRight);
+ }
+
+ ptItem->m_iHeadChild = iHeadchild;
+ ptItem->m_iHeadWord = ptItem->m_vecChildren[iHeadchild]->m_iHeadWord;
+ }
+
+ static void fnReadSyntactic(const char *pszSyn, vector<string> &vec) {
+ char *p;
+ int I;
+
+ int iLeftNum, iRightNum;
+ char *pszTmp, *pszTerm;
+ pszTmp = new char[strlen(pszSyn)];
+ pszTerm = new char[strlen(pszSyn)];
+ pszTmp[0] = pszTerm[0] = '\0';
+
+ vec.clear();
+
+ char *pszLine;
+ pszLine = new char[strlen(pszSyn) + 1];
+ strcpy(pszLine, pszSyn);
+
+ char *pszLine2;
+
+ while (1) {
+ while ((strlen(pszLine) > 0) && (pszLine[strlen(pszLine) - 1] > 0) &&
+ (pszLine[strlen(pszLine) - 1] <= ' '))
+ pszLine[strlen(pszLine) - 1] = '\0';
+
+ if (strlen(pszLine) == 0) break;
+
+ // printf( "%s\n", pszLine );
+ pszLine2 = pszLine;
+ while (pszLine2[0] <= ' ') pszLine2++;
+ if (pszLine2[0] == '<') continue;
+
+ sscanf(pszLine2 + 1, "%s", pszTmp);
+
+ if (pszLine2[0] == '(') {
+ iLeftNum = 0;
+ iRightNum = 0;
+ }
+
+ p = pszLine2;
+ while (1) {
+ pszTerm[0] = '\0';
+ sscanf(p, "%s", pszTerm);
+
+ if (strlen(pszTerm) == 0) break;
+ p = strstr(p, pszTerm);
+ p += strlen(pszTerm);
+
+ if ((pszTerm[0] == '(') || (pszTerm[strlen(pszTerm) - 1] == ')')) {
+ if (pszTerm[0] == '(') {
+ vec.push_back(string("("));
+ iLeftNum++;
+
+ I = 1;
+ while (pszTerm[I] == '(' && pszTerm[I] != '\0') {
+ vec.push_back(string("("));
+ iLeftNum++;
+
+ I++;
+ }
+
+ if (strlen(pszTerm) > 1) vec.push_back(string(pszTerm + I));
+ } else {
+ char *pTmp;
+ pTmp = pszTerm + strlen(pszTerm) - 1;
+ while ((pTmp[0] == ')') && (pTmp >= pszTerm)) pTmp--;
+ pTmp[1] = '\0';
+
+ if (strlen(pszTerm) > 0) vec.push_back(string(pszTerm));
+ pTmp += 2;
+
+ for (I = 0; I <= (int)strlen(pTmp); I++) {
+ vec.push_back(string(")"));
+ iRightNum++;
+ }
+ }
+ } else {
+ char *q;
+ q = strchr(pszTerm, ')');
+ if (q != NULL) {
+ q[0] = '\0';
+ if (pszTerm[0] != '\0') vec.push_back(string(pszTerm));
+ vec.push_back(string(")"));
+ iRightNum++;
+
+ q++;
+ while (q[0] == ')') {
+ vec.push_back(string(")"));
+ q++;
+ iRightNum++;
+ }
+
+ while (q[0] == '(') {
+ vec.push_back(string("("));
+ q++;
+ iLeftNum++;
+ }
+
+ if (q[0] != '\0') vec.push_back(string(q));
+ } else
+ vec.push_back(string(pszTerm));
+ }
+ }
+
+ if (iLeftNum != iRightNum) {
+ fprintf(stderr, "%s\n", pszSyn);
+ assert(iLeftNum == iRightNum);
+ }
+ /*if ( iLeftNum != iRightNum ) {
+ printf( "ERROR: left( and right ) is not matched, %d ( and %d
+ )\n", iLeftNum, iRightNum );
+ return;
+ }*/
+
+ if (vec.size() >= 2 && strcmp(vec[1].c_str(), "(") == 0) {
+ //( (IP..) )
+ std::vector<string>::iterator it;
+ it = vec.begin();
+ it++;
+ vec.insert(it, string("ROOT"));
+ }
+
+ break;
+ }
+
+ delete[] pszLine;
+ delete[] pszTmp;
+ delete[] pszTerm;
+ }
+
+ public:
+ STreeItem *m_ptRoot;
+ vector<STreeItem *> m_vecTerminals; // the leaf nodes
+};
+
+struct SParseReader {
+ SParseReader(const char *pszParse_Fname, bool bFlattened = false)
+ : m_bFlattened(bFlattened) {
+ m_fpIn = fopen(pszParse_Fname, "r");
+ assert(m_fpIn != NULL);
+ }
+ ~SParseReader() {
+ if (m_fpIn != NULL) fclose(m_fpIn);
+ }
+
+ SParsedTree *fnReadNextParseTree() {
+ SParsedTree *pTree = NULL;
+ char *pszLine = new char[100001];
+ int iLen;
+
+ while (fnReadNextSentence(pszLine, &iLen) == true) {
+ if (iLen == 0) continue;
+
+ pTree = SParsedTree::fnConvertFromString(pszLine);
+ if (pTree == NULL) break;
+ if (m_bFlattened)
+ fnPostProcessingFlattenedParse(pTree);
+ else {
+ pTree->fnSetSpanInfo();
+ pTree->fnSetHeadWord();
+ }
+ break;
+ }
+
+ delete[] pszLine;
+ return pTree;
+ }
+
+ SParsedTree *fnReadNextParseTreeWithProb(double *pProb) {
+ SParsedTree *pTree = NULL;
+ char *pszLine = new char[100001];
+ int iLen;
+
+ while (fnReadNextSentence(pszLine, &iLen) == true) {
+ if (iLen == 0) continue;
+
+ char *p = strchr(pszLine, ' ');
+ assert(p != NULL);
+ p[0] = '\0';
+ p++;
+ if (pProb) (*pProb) = atof(pszLine);
+
+ pTree = SParsedTree::fnConvertFromString(p);
+ if (m_bFlattened)
+ fnPostProcessingFlattenedParse(pTree);
+ else {
+ pTree->fnSetSpanInfo();
+ pTree->fnSetHeadWord();
+ }
+ break;
+ }
+
+ delete[] pszLine;
+ return pTree;
+ }
+
+ private:
+ /*
+ * since to the parse tree is a flattened tree, use the head mark to identify
+ * head info.
+ * the head node will be marked as "*XP*"
+ */
+ void fnSetParseTreeHeadInfo(SParsedTree *pTree) {
+ for (size_t i = 0; i < pTree->m_vecTerminals.size(); i++)
+ pTree->m_vecTerminals[i]->m_iHeadWord = i;
+ fnSuffixTraverseSetHeadWord(pTree->m_ptRoot);
+ }
+
+ void fnSuffixTraverseSetHeadWord(STreeItem *pTreeItem) {
+ if (pTreeItem->m_vecChildren.size() == 0) return;
+
+ for (size_t i = 0; i < pTreeItem->m_vecChildren.size(); i++)
+ fnSuffixTraverseSetHeadWord(pTreeItem->m_vecChildren[i]);
+
+ vector<string> vecRight;
+
+ int iHeadchild;
+
+ if (pTreeItem->fnIsPreTerminal()) {
+ iHeadchild = 0;
+ } else {
+ size_t i;
+ for (i = 0; i < pTreeItem->m_vecChildren.size(); i++) {
+ char *p = pTreeItem->m_vecChildren[i]->m_pszTerm;
+ if (p[0] == '*' && p[strlen(p) - 1] == '*') {
+ iHeadchild = i;
+ p[strlen(p) - 1] = '\0';
+ string str = p + 1;
+ strcpy(p, str.c_str()); // erase the "*..*"
+ break;
+ }
+ }
+ assert(i < pTreeItem->m_vecChildren.size());
+ }
+
+ pTreeItem->m_iHeadChild = iHeadchild;
+ pTreeItem->m_iHeadWord = pTreeItem->m_vecChildren[iHeadchild]->m_iHeadWord;
+ }
+ void fnPostProcessingFlattenedParse(SParsedTree *pTree) {
+ pTree->fnSetSpanInfo();
+ fnSetParseTreeHeadInfo(pTree);
+ }
+ bool fnReadNextSentence(char *pszLine, int *piLength) {
+ if (feof(m_fpIn) == true) return false;
+
+ int iLen;
+
+ pszLine[0] = '\0';
+
+ fgets(pszLine, 10001, m_fpIn);
+ iLen = strlen(pszLine);
+ while (iLen > 0 && pszLine[iLen - 1] > 0 && pszLine[iLen - 1] < 33) {
+ pszLine[iLen - 1] = '\0';
+ iLen--;
+ }
+
+ if (piLength != NULL) (*piLength) = iLen;
+
+ return true;
+ }
+
+ private:
+ FILE *m_fpIn;
+ const bool m_bFlattened;
+};
+
+#endif /* TREE_H_ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 01:49:28 +0000