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annotate regexParser/threadedSearch.cc @ 308:1188debbef10

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separate CharClass
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 08 Feb 2016 12:45:45 +0900
parents bdfe0a32c48f
children c9458ffecb87
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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diff changeset
1 #include <stdio.h>
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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2 #include <stdlib.h>
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3
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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4 #include "regexParser.h"
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5 #include "CharClass.h"
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6 #include "threadedSearch.h"
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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7 #include "subsetConstruction.h"
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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8
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9 static
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10 TSValue stateNothing(TSValue tsv) {
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11 return tsv;
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12 }
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13
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14 static
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15 TSValue stateSkip(TSValue tsv) {
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16 if (tsv.matchEnd) {
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17 fwrite(tsv.matchBegin,tsv.matchEnd-tsv.matchBegin,1,stdout);
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18 puts("");
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19 tsv.matchEnd = NULL;
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20 }
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21 tsv.matchBegin = tsv.buff.buffptr; // next char may be matchBegin
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22 return tsv;
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23 }
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24
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25 static
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26 TSValue stateMatch(TSValue tsv) {
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27 tsv.matchEnd = tsv.buff.buffptr; // next char of the match
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28 return tsv;
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29 }
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30
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31 TStatePtr generateTState(StatePtr state, TransitionGeneratorPtr tg) {
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32 TStatePtr tState = NEW(TState);
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33 tState->state = state;
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34 int ccvSize = 0;
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35 CharClassWalkerPtr ccw = createCharClassWalker(state->cc);
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36 while (hasNext(ccw)) {
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37 getNext(ccw);
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38 ccvSize++;
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39 }
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40 tState->ccvSize = ccvSize;
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41 if (state->accept) {
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42 tState->stateMatch = tg->stateMatch;
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43 tState->stateSkip = tg->stateSkip;
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44 } else {
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45 tState->stateMatch = tg->stateNothing;
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46 tState->stateSkip = tg->stateSkip;
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47 }
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48 if (ccvSize == 0) {
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49 tState->ccv = NULL;
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50 state->tState = tState;
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51 return tState;
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52 } else tState->ccv = (ccv*)malloc(sizeof(ccv)*ccvSize);
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53 ccw = createCharClassWalker(state->cc);
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54 int i = 0;
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55 while (hasNext(ccw)) {
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56 CharClassPtr cc = getNext(ccw);
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57 unsigned long begin = cc->cond.range.begin;
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58 unsigned long end = cc->cond.range.end;
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59 struct ccv *ccv = &tState->ccv[i++];
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60 ccv->begin = begin;
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61 ccv->end = end;
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62 ccv->tState = NULL;
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63 ccv->state = cc->nextState;
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64 ccv->w = cc->cond.w;
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65 }
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66 free(ccw);
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67 state->tState = tState;
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68 return tState;
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69 }
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70
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71 TStatePtr nextTState(BitVector bi,TransitionGeneratorPtr tg) {
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72 // create tSearch in next state.
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73 StatePtr state = tg->stateArray[bi.bitContainer];
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74 if (state == NULL) {
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75 // on the fly subset construction.
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76 state = createState(tg,bi);
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77 determinize(state,tg);
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78 tg->stateArray[bi.bitContainer] = state;
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79 }
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80 if (state->tState == NULL) {
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81 generateTState(state,tg);
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82 }
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83 return state->tState;
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84 }
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85
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86 #define DEBUG 0
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87
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88 TSValue tSearch(TSValue tsv) {
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89 #if DEBUG
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90 TSValuePtr tsvp = &tsv; // make tsv visible in lldb
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91 #endif
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92 next: while (tsv.buff.buffptr < tsv.buff.buffend) {
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93 tsv = tsv.current->stateMatch(tsv);
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94 if (tsv.current->ccvSize==0) {
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95 // matched start again
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96 tsv.current = tsv.tg->stateStart->tState;
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97 }
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98 unsigned char c = *tsv.buff.buffptr++;
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99 // printState(tsv.current->state);
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100 for (int i = 0; i < tsv.current->ccvSize; i++) {
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101 CCVPtr ccv = &tsv.current->ccv[i];
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102 if (c<ccv->begin) {
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103 tsv.current = tsv.tg->stateStart->tState;
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104 tsv = tsv.current->stateSkip(tsv);
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105 goto next;
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106 } else if (c<=ccv->end) {
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107 // range matched.
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108 if (ccv->w.word) {
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109 // match the word.
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110 // if (not match) continue;
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111 }
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112 if (ccv->tState) {
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113 tsv.current = ccv->tState;
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114 } else {
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115 tsv.current = nextTState(ccv->state,tsv.tg);
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116 ccv->tState = tsv.current;
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117 }
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118 goto next;
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119 }
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120 }
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121 tsv.current = tsv.tg->stateStart->tState;
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122 tsv = tsv.current->stateSkip(tsv);
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123 }
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124 #if DEBUG
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125 *tsvp = tsv;
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126 return *tsvp;
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127 #else
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128 return tsv;
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129 #endif
245
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130 }
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131
298
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132 TSValue
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133 createTSValue(TransitionGeneratorPtr tg, Buffer buff) {
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134 TSValue tsv;
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135 if (!tg) {
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136 tg = createTransitionGenerator();
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137 }
262
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138 tsv.buff = buff;
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139 tsv.tg = tg;
292
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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140 tsv.blk = NULL;
298
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141 tsv.matchBegin = buff.buffptr;
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142 tsv.matchEnd = NULL;
266
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masa
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143 tsv.tg->stateSkip = stateSkip;
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144 tsv.tg->stateMatch = stateMatch;
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145 tsv.tg->stateNothing = stateNothing;
298
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146 return tsv;
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parents: 293
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147 }
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parents: 293
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148
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149
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150 void threadedSearch(TransitionGeneratorPtr tg, Buffer buff) {
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151 TSValue tsv = createTSValue(tg,buff);
270
c82f7e7f66f7 running ts
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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152 tsv.current = generateTState(tg->stateList,tg);
288
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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153 tg->stateStart = NEW(State);
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154 *tg->stateStart = *tg->stateList;
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155 tg->stateStart->accept = false; // Start state never accept
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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156 generateTState(tg->stateStart,tg);
263
292753bb31e4 fix Makefile
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 262
diff changeset
157 tSearch(tsv);
262
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
158 }
298
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parents: 293
diff changeset
159
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diff changeset
160 /* end */