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annotate c/regexParser/createBitVectorList.cc @ 107:c9f5ee891b5e impl-bitvector

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change variable of setNextBitVectorList()
author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Thu, 19 Nov 2015 17:23:06 +0900
parents 766fc2476f01
children 70069d4647a0
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <ctype.h>
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4 #include "bitVector.h"
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5 #include "regexParser.h"
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6
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7 extern BitVectorPtr bitSet(int);
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8 extern void bitPrint(BitVectorPtr);
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9 BitVectorListPtr createBitVector(NodePtr);
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10 BitVectorListPtr descendTreeNode(NodePtr, BitVectorListPtr, BitVectorListPtr, bool&);
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11 BitVectorListPtr setNextBitVectorList(unsigned char, BitVectorListPtr, BitVectorListPtr);
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12
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13 BitVectorListPtr initBvl;
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15 BitVectorListPtr allocateBitVectorList() {
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16 BitVectorListPtr bvl = (BitVectorListPtr)malloc(sizeof(BitVectorList));
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17 bvl->self = bvl;
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18 bvl->bi = (BitVectorPtr)malloc(sizeof(BitVector));
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19
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20 return bvl;
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21 }
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22
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23 BitVectorListPtr createBitVector(NodePtr n,BitVectorListPtr bvl) {
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24 BitVectorListPtr nextBvl = allocateBitVectorList();
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25 nextBvl->bi = bitSet(n->nodeNumber);
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26 nextBvl->initBvl = initBvl;
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27 return nextBvl;
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28 }
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30
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31 BitVectorListPtr initBitVector() {
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32
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33 BitVectorListPtr bvl = allocateBitVectorList();
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34 bvl->initBvl = initBvl = bvl;
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35 bvl->bi = bitSet(0);
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36
105
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37 for (int i = 0; i < 256; i++) {
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38 bvl->next[i] = NULL;
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39 }
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40
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41 return bvl;
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42 }
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43
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44 void printBitVectorList (BitVectorListPtr bvl) {
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45 bool isFirstPrint = true;
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46 for (int i = 0; i < 256; i++) {
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47 if (bvl->next[i] != NULL) {
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48 if (isFirstPrint){
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49 puts("----");
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50 printf(" state : "); bitPrint(bvl->bi);
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51 isFirstPrint = false;
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52 }
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53 printf("input char : %c\n",i);
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54 printf("next state : ");bitPrint(bvl->next[i]->bi);
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55 }
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56 }
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57
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58 for (int i = 0; i < 256; i++) {
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59 if (bvl->next[i] != NULL) {
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60 printBitVectorList(bvl->next[i]);
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61 }
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62 }
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63 }
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64
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65 BitVectorListPtr descendTreeNode(NodePtr n,BitVectorListPtr bvl, BitVectorListPtr prev, bool &fromOr) {
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66 bool leftIsOr, rightIsOr;
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67 if (n->Value.character == '*') {
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68 bvl = descendTreeNode(n->left, bvl, prev, leftIsOr);
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69 unsigned char repertChar = 0;
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70 for (int i = 0; i < 256; i++) {
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71 if (prev->next[i] != NULL) repertChar = i;
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72 }
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73 setNextBitVectorList(repertChar, prev->next[repertChar], bvl); // here
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74 return prev;
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75 } else if (n->Value.character == '|') {
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76 bvl = descendTreeNode(n->left, bvl, prev, leftIsOr);
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77 setNextBitVectorList(n->left->Value.character, prev, bvl);
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78 bvl = descendTreeNode(n->right, bvl, prev, rightIsOr);
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79 setNextBitVectorList(n->right->Value.character, prev, bvl);
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80 fromOr = true;
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81 return prev;
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82 } else if (n->Value.character == '+') {
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83 bvl = descendTreeNode(n->left, bvl, prev, leftIsOr);
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84 setNextBitVectorList(n->left->Value.character, prev, bvl);
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85 prev = bvl;
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86 bvl = descendTreeNode(n->right, bvl, prev, rightIsOr);
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87
105
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88 if (leftIsOr){
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89 for (int i = 0; i < 256; i++)
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90 if (prev->next[i] != NULL)
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91 setNextBitVectorList(n->right->Value.character, prev->next[i], bvl);
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92 }
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93 else {
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94 setNextBitVectorList(n->right->Value.character, prev, bvl);
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95 }
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96
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97 fromOr = false;
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98 } else if (n->tokenType == 'a') {
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99 bvl = createBitVector(n,bvl);
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100 fromOr = false;
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101 }
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102 return bvl;
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103 }
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104
107
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105 BitVectorListPtr setNextBitVectorList(unsigned char inputChar, BitVectorListPtr bvl, BitVectorListPtr next){
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106 if (isalnum((int)inputChar)){
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107 bvl->next[(int)inputChar] = next;
105
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108 }
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109 return next;
101
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110 }
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111
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112 BitVectorListPtr createBitVectorList(NodePtr n) {
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113 BitVectorListPtr bvl = initBitVector();
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114 bool fromOr = false;
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115 descendTreeNode(n, bvl, bvl, fromOr);
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116 printBitVectorList(bvl);
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117 return bvl;
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118 }