Mercurial > hg > Applications > Grep
annotate regexParser/threadedSearch.cc @ 263:292753bb31e4
fix Makefile
author | Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> |
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date | Wed, 27 Jan 2016 16:37:42 +0900 |
parents | 157f6886ba55 |
children | ef95a7f1bc03 |
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247 | 1 #include <stdio.h> |
2 #include <stdlib.h> | |
3 | |
246 | 4 #include "regexParser.h" |
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5 #include "threadedSearch.h" |
246 | 6 #include "subsetConstruction.h" |
7 | |
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8 void tSearch(TSValue tsv); |
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9 |
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10 void stateSkip(TSValue tsv) { |
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11 tsv.buff.matchBegin = tsv.buff.buffptr; |
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12 } |
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13 |
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14 void stateMatch(TSValue tsv) { |
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15 fwrite(tsv.buff.matchBegin,tsv.buff.buffptr-tsv.buff.matchBegin-1,1,stdout); |
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16 puts("\n"); |
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17 } |
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18 |
251 | 19 TStatePtr generateTState(StatePtr state) { |
247 | 20 TStatePtr tState = NEW(TState); |
21 int ccvSize = 0; | |
251 | 22 CharClassWalkerPtr ccw = createCharClassWalker(state->cc); |
247 | 23 while (hasNext(ccw)) { |
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24 getNext(ccw); |
247 | 25 ccvSize++; |
26 } | |
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27 tState->ccvSize = ccvSize; |
247 | 28 if (ccvSize == 0) return tState; |
29 else tState->ccv = (ccv*)malloc(sizeof(ccv)*ccvSize); | |
251 | 30 ccw = createCharClassWalker(state->cc); |
247 | 31 int i = 0; |
32 while (hasNext(ccw)) { | |
33 CharClassPtr cc = getNext(ccw); | |
34 unsigned long begin = cc->cond.range.begin; | |
35 unsigned long end = cc->cond.range.end; | |
36 struct ccv *ccv = &tState->ccv[i++]; | |
37 ccv->begin = begin; | |
38 ccv->end = end; | |
39 ccv->tState = NULL; | |
40 ccv->state = cc->nextState; | |
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41 ccv->w = cc->cond.w; |
247 | 42 } |
43 free(ccw); | |
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44 if (state->accept) { |
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45 tState->stateSkip = stateMatch; |
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46 tState->stateMatch = stateSkip; |
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47 } else { |
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48 tState->stateSkip = stateSkip; |
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49 tState->stateMatch = stateMatch; |
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50 } |
247 | 51 return tState; |
52 } | |
53 | |
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54 void tSearch(TSValue tsv) { |
247 | 55 next: while (tsv.buff.buffptr < tsv.buff.buffend) { |
56 unsigned char c = *tsv.buff.buffptr++; | |
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57 for (int i = 0; i < tsv.current->ccvSize; i++) { |
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58 CCVPtr ccv = &tsv.current->ccv[i]; |
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59 if (c<ccv->begin) { |
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60 tsv.current->stateSkip(tsv); |
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61 goto next; |
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62 } else if (c<=ccv->end) { |
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63 // range matched. |
251 | 64 if (ccv->w.word) { |
248
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65 // match the word. |
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66 // if (not match) continue; |
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67 } |
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68 TStatePtr current = ccv->tState; |
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69 if (current == NULL) { |
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70 // create tSearch in next state. |
251 | 71 StatePtr state = tsv.tg->stateArray[ccv->state.bitContainer]; |
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72 if (state == NULL) { |
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73 // on the fly subset construction. |
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74 state = createState(tsv.tg,state->bitState); |
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75 tsv.tg->stateArray[state->bitState.bitContainer] = state; |
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76 determinize(state,tsv.tg); |
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77 } |
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78 if (state->tState == NULL) { |
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79 current = generateTState(state); |
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80 ccv->tState = current; |
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81 } else { |
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82 ccv->tState = state->tState; |
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83 } |
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84 } |
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85 tsv.current = ccv->tState; |
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86 if (tsv.current->state->bitState.bitContainer & 2) { |
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87 tsv.current->stateMatch(tsv); |
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88 } |
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89 goto next; |
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90 } |
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91 } |
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92 tsv.current->stateSkip(tsv); |
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93 } |
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94 } |
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95 |
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96 void threadedSearch(TransitionGeneratorPtr tg, Buffer buff) { |
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97 TSValue tsv; |
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98 tsv.buff = buff; |
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99 tsv.tg = tg; |
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100 tsv.current = generateTState(tg->stateList); |
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101 tSearch(tsv); |
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102 } |