Mercurial > hg > Applications > Grep
annotate regexParser/subsetConstraction.cc @ 190:3e8e5780ad4a pairPro
change node::State to State
author | Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 25 Dec 2015 15:30:52 +0900 |
parents | fccf7941ecc2 |
children | 02031fb73af8 |
rev | line source |
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96
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add createBitVectorList.cc
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1 #include <stdio.h> |
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add createBitVectorList.cc
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2 #include <stdlib.h> |
101 | 3 #include <ctype.h> |
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4 #include "subsetConstraction.h" |
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change node::State to State
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5 #include "node.h" |
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add createBitVectorList.cc
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6 |
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7 CharClassPtr createCharClassWord(unsigned char *w, CharClassPtr cc1, CharClassPtr cc2) { |
146 | 8 CharClassPtr cc = NEW(CharClass); |
154 | 9 return cc; |
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10 } |
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impl createCharClassRange()
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11 |
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impl createCharClassRange()
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12 CharClassPtr createCharClassRange(unsigned long begin, unsigned long end,unsigned long state, CharClassPtr left, CharClassPtr right) { |
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impl createCharClassRange()
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13 CharClassPtr cc = NEW(CharClass); |
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14 cc->type = 'r'; |
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impl createCharClassRange()
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15 cc->cond.range.begin = begin; |
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16 cc->cond.range.end = end; |
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impl createCharClassRange()
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17 cc->left = left; |
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impl createCharClassRange()
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18 cc->right = right; |
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impl createCharClassRange()
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19 cc->nextState.bitContainer = state; |
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impl createCharClassRange()
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20 return cc; |
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21 } |
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22 |
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implement mergeCCTree()
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23 CharClassPtr mergeCCTree(CharClassPtr cc,unsigned char mBegin,unsigned char mEnd,BitVector nextState) { |
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24 CharClassPtr cc1; |
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25 if (cc) { |
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26 cc1 = charClassMerge(cc,mBegin,mEnd,nextState); |
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27 } else { |
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impl createCharClassRange()
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28 cc1 = createCharClassRange(mBegin,mEnd,nextState.bitContainer,NULL,NULL); |
166
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29 } |
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30 return cc1; |
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31 } |
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32 |
152 | 33 CharClassPtr charClassMerge(CharClassPtr cc,unsigned long begin, unsigned long end, BitVector nextState) { |
143 | 34 // 重なっているccの領域を分割する |
35 // 必要ならばnextStateを重ねあわせる | |
36 // 変更があった場合は新しくリストを作って返す | |
152 | 37 if (end < cc->cond.range.begin ) { // 1 |
38 if (cc->left) { | |
188
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39 return createCharClassRange(cc->cond.range.begin,cc->cond.range.end,nextState.bitContainer,charClassMerge(cc->left,begin,end,nextState),cc->right); |
152 | 40 } else { |
168
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impl createCharClassRange()
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41 return createCharClassRange(begin,end,nextState.bitContainer,NULL,cc); |
152 | 42 } |
163 | 43 } else if (end == cc->cond.range.begin && begin != end ) { // 2 |
166
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44 CharClassPtr cc1 = mergeCCTree(cc->left,begin,end-1,nextState); |
156
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impl charClassMerge(not working)
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45 if (cc->cond.range.begin == cc->cond.range.end) { |
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impl createCharClassRange()
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46 return createCharClassRange(cc->cond.range.begin,cc->cond.range.end, |
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impl createCharClassRange()
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47 cc->nextState.bitContainer | nextState.bitContainer, cc1,cc->right); |
155 | 48 } |
168
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impl createCharClassRange()
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49 CharClassPtr cc3 = createCharClassRange(cc->cond.range.begin+1,cc->cond.range.end,cc->nextState.bitContainer,cc->left,cc->right); |
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impl createCharClassRange()
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50 return createCharClassRange(cc->cond.range.begin,cc->cond.range.begin, |
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impl createCharClassRange()
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51 cc->nextState.bitContainer | nextState.bitContainer,cc1,cc3); |
163 | 52 } else if (end < cc->cond.range.end) { // range.begin < end |
155 | 53 if (begin < cc->cond.range.begin) { // 3 |
166
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54 CharClassPtr cc1 = mergeCCTree(cc->left,begin,cc->cond.range.begin-1,nextState); |
168
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impl createCharClassRange()
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55 CharClassPtr cc3 = createCharClassRange(end+1,cc->cond.range.end,cc->nextState.bitContainer,cc->left,cc->right); |
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impl createCharClassRange()
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56 return createCharClassRange(cc->cond.range.begin,end,cc->nextState.bitContainer | nextState.bitContainer,cc1,cc3); |
152 | 57 } |
155 | 58 if (begin == cc->cond.range.begin) { // 6 |
168
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impl createCharClassRange()
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59 CharClassPtr cc2 = createCharClassRange(end+1,cc->cond.range.end,cc->nextState.bitContainer,NULL,cc->right); |
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impl createCharClassRange()
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60 return createCharClassRange(begin,end,cc->nextState.bitContainer | nextState.bitContainer,cc->left,cc2); |
155 | 61 } |
62 // 9 | |
168
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impl createCharClassRange()
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63 CharClassPtr cc2 = createCharClassRange(cc->cond.range.begin,begin-1,cc->nextState.bitContainer,cc->left,NULL); |
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impl createCharClassRange()
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64 CharClassPtr cc3 = createCharClassRange(end+1,cc->cond.range.end,cc->nextState.bitContainer,NULL,cc->right); |
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impl createCharClassRange()
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65 return createCharClassRange(begin,end,cc->nextState.bitContainer | nextState.bitContainer,cc2,cc3); |
155 | 66 } else if (end == cc->cond.range.end) { |
67 if (begin == cc->cond.range.begin) { // 7 | |
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impl createCharClassRange()
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68 return createCharClassRange(begin,end,cc->nextState.bitContainer | nextState.bitContainer,cc->left,cc->right); |
155 | 69 } else if (begin < cc->cond.range.begin) { // 4 |
166
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implement mergeCCTree()
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70 CharClassPtr cc1 = mergeCCTree(cc->left,begin,cc->cond.range.begin-1,nextState); |
168
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impl createCharClassRange()
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71 return createCharClassRange(cc->cond.range.begin,end,cc->nextState.bitContainer | nextState.bitContainer,cc1,cc->right); |
155 | 72 } |
163 | 73 // 10 cond.range.begin < begin |
168
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impl createCharClassRange()
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74 CharClassPtr cc2 = createCharClassRange(begin,cc->cond.range.end,cc->nextState.bitContainer | nextState.bitContainer,NULL,cc->right); |
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impl createCharClassRange()
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75 return createCharClassRange(cc->cond.range.begin,begin-1,cc->nextState.bitContainer,cc->left,cc2); |
143 | 76 } |
155 | 77 if (begin > cc->cond.range.end ) { // 13 |
78 if (cc->right) { | |
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79 return createCharClassRange(cc->cond.range.begin,cc->cond.range.end,nextState.bitContainer,cc->left,charClassMerge(cc->right,begin,end,nextState)); |
155 | 80 } else { |
168
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impl createCharClassRange()
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81 return createCharClassRange(begin,end,nextState.bitContainer,cc,NULL); |
155 | 82 } |
152 | 83 } |
155 | 84 if (begin >= cc->cond.range.begin && begin <= cc->cond.range.end) { |
163 | 85 if (end > cc->cond.range.end) { // cond.range.end < end |
155 | 86 if (begin == cc->cond.range.begin) { // 8 |
166
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implement mergeCCTree()
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87 CharClassPtr cc1 = mergeCCTree(cc->right,cc->cond.range.end+1,end,nextState); |
168
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impl createCharClassRange()
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88 return createCharClassRange(cc->cond.range.begin,cc->cond.range.end, |
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impl createCharClassRange()
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89 cc->nextState.bitContainer | nextState.bitContainer,cc->left,cc1); |
155 | 90 } |
156
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impl charClassMerge(not working)
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91 if (begin > cc->cond.range.begin) { // 11 |
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implement mergeCCTree()
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92 CharClassPtr cc1 = mergeCCTree(cc->right,cc->cond.range.end+1,end,nextState); |
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impl createCharClassRange()
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93 CharClassPtr cc3 = createCharClassRange(cc->cond.range.begin,begin-1,cc->nextState.bitContainer,cc->left,NULL); |
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impl createCharClassRange()
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94 return createCharClassRange(begin,cc->cond.range.end,cc->nextState.bitContainer | nextState.bitContainer,cc3,cc1); |
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impl charClassMerge(not working)
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95 } |
155 | 96 } |
163 | 97 // begin != end && end != cc->cond.range.end |
98 if (begin == cc->cond.range.end) { // 12 | |
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implement mergeCCTree()
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99 CharClassPtr cc1 = mergeCCTree(cc->right,begin+1,end,nextState); |
156
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impl charClassMerge(not working)
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100 if (cc->cond.range.begin == cc->cond.range.end) { |
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impl createCharClassRange()
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101 return createCharClassRange(cc->cond.range.begin,cc->cond.range.end,cc->nextState.bitContainer | nextState.bitContainer,cc1,cc->right); |
156
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impl charClassMerge(not working)
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102 } |
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impl createCharClassRange()
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103 CharClassPtr cc3 = createCharClassRange(cc->cond.range.begin,cc->cond.range.end-1,cc->nextState.bitContainer,cc->left,NULL); |
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impl createCharClassRange()
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104 return createCharClassRange(cc->cond.range.end,cc->cond.range.end,cc->nextState.bitContainer | nextState.bitContainer,cc1,cc3); |
155 | 105 } |
156
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impl charClassMerge(not working)
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106 } else if (begin < cc->cond.range.begin) { // 5 |
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implement mergeCCTree()
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107 CharClassPtr cc1 = mergeCCTree(cc->left,begin,cc->cond.range.begin-1,nextState); |
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implement mergeCCTree()
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108 CharClassPtr cc3 = mergeCCTree(cc->right,cc->cond.range.end+1,end,nextState); |
168
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impl createCharClassRange()
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109 return createCharClassRange(cc->cond.range.begin,cc->cond.range.end,cc->nextState.bitContainer | nextState.bitContainer,cc1,cc3); |
152 | 110 } else { |
111 printf("charClassMerge Error : begin %lu end %lu cc->begin %lu cc->end %lu\n", begin,end,cc->cond.range.begin,cc->cond.range.end); | |
112 } | |
113 return cc; | |
143 | 114 } |
115 | |
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change return value findLeftMost()
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116 void findLeftMost(CharClassPtr next,CharClassWalkerPtr walk) { |
169
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implement mergeTransition
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117 while (next->left) { |
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118 CharClassStackPtr ccs = NEW(CharClassStack); |
180
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implement getNext
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119 ccs->next = walk->stack; |
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implement getNext
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120 ccs->turn = LEFT; |
171
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121 ccs->cc = next; |
180
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implement getNext
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122 walk->stack = ccs; |
169
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implement mergeTransition
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123 next = next->left; |
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implement mergeTransition
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124 } |
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125 walk->next = next; |
169
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implement mergeTransition
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126 } |
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implement mergeTransition
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127 |
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implement mergeTransition
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128 CharClassWalkerPtr createCharClassWalker (CharClassPtr next) { |
313f1c176328
implement mergeTransition
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changeset
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129 CharClassWalkerPtr walk = NEW(CharClassWalker); |
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130 walk->next = NULL; |
180
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parents:
178
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changeset
|
131 walk->stack = NULL; |
169
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168
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changeset
|
132 if (!next) return walk; |
313f1c176328
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changeset
|
133 if (!next->left) { |
313f1c176328
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changeset
|
134 walk->next = next; |
313f1c176328
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parents:
168
diff
changeset
|
135 return walk; |
313f1c176328
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168
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|
136 } |
181
3c4db09b8581
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180
diff
changeset
|
137 findLeftMost(next,walk); |
169
313f1c176328
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parents:
168
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changeset
|
138 return walk; |
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
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changeset
|
139 } |
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
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changeset
|
140 |
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
141 bool hasNext(CharClassWalkerPtr walk) { |
313f1c176328
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parents:
168
diff
changeset
|
142 return walk->next != NULL; |
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
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changeset
|
143 } |
313f1c176328
implement mergeTransition
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
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changeset
|
144 |
180
d97bcab546e8
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178
diff
changeset
|
145 CharClassStackPtr charClassStackPop(CharClassWalkerPtr walk) { |
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178
diff
changeset
|
146 if (!walk->stack) { |
d97bcab546e8
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parents:
178
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changeset
|
147 return NULL; |
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178
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changeset
|
148 } |
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changeset
|
149 CharClassStackPtr prev = walk->stack->next; |
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parents:
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changeset
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150 free(walk->stack); |
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changeset
|
151 walk->stack = prev; |
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152 return prev; |
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153 } |
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154 |
169
313f1c176328
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changeset
|
155 CharClassPtr getNext(CharClassWalkerPtr walk) { |
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changeset
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156 CharClassPtr current = walk->next; |
180
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changeset
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157 walk->next = NULL; |
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changeset
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158 while (walk->stack) { |
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changeset
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159 while (walk->stack->turn == RIGHT) { |
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changeset
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160 if (charClassStackPop(walk) == NULL) { |
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changeset
|
161 return current; |
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changeset
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162 } |
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163 } |
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changeset
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164 if (walk->stack->turn == LEFT) { |
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178
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changeset
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165 walk->next = walk->stack->cc; |
181
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180
diff
changeset
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166 walk->stack->turn = SELF; |
180
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changeset
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167 return current; |
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178
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changeset
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168 } |
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178
diff
changeset
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169 if (current->right) { |
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
178
diff
changeset
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170 walk->stack->turn = RIGHT; |
181
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180
diff
changeset
|
171 findLeftMost(current->right,walk); |
180
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178
diff
changeset
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172 return current; |
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178
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173 } |
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178
diff
changeset
|
174 charClassStackPop(walk); |
169
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
175 } |
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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168
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changeset
|
176 return current; |
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
177 } |
313f1c176328
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
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changeset
|
178 |
182
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
179 void setState(CharClassPtr cc, BitVector bi) { |
189 | 180 cc->nextState = bi; |
182
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parents:
181
diff
changeset
|
181 if (cc->left) { |
dbe004d03ef0
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parents:
181
diff
changeset
|
182 setState(cc->left,bi); |
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
183 } |
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181
diff
changeset
|
184 cc->nextState = bi; |
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181
diff
changeset
|
185 if (cc->right) { |
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parents:
181
diff
changeset
|
186 setState(cc->right,bi); |
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parents:
181
diff
changeset
|
187 } |
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parents:
181
diff
changeset
|
188 } |
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parents:
181
diff
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|
189 |
190
3e8e5780ad4a
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
189
diff
changeset
|
190 CharClassPtr mergeTransition(StatePtr x,CharClassPtr y) { |
178
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implement charClassMerge
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
177
diff
changeset
|
191 if (x->cc == NULL) { |
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parents:
177
diff
changeset
|
192 return y; |
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parents:
177
diff
changeset
|
193 } |
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implement charClassMerge
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parents:
177
diff
changeset
|
194 CharClassWalkerPtr walk = createCharClassWalker(x->cc); |
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parents:
177
diff
changeset
|
195 CharClassPtr ccy = y; |
172
540fc12871d9
remove some warnings and errors (not working)
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
171
diff
changeset
|
196 BitVector bi; |
169
313f1c176328
implement mergeTransition
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
197 for (CharClassPtr cc = getNext(walk); hasNext(walk); cc=getNext(walk)) { |
171
684363c44d6f
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
170
diff
changeset
|
198 unsigned long begin = cc->cond.range.begin; |
684363c44d6f
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
170
diff
changeset
|
199 unsigned long end = cc->cond.range.end; |
172
540fc12871d9
remove some warnings and errors (not working)
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
171
diff
changeset
|
200 bi = cc->nextState; |
171
684363c44d6f
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
170
diff
changeset
|
201 ccy = charClassMerge(ccy,begin,end,bi); |
169
313f1c176328
implement mergeTransition
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
202 } |
313f1c176328
implement mergeTransition
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
203 free(walk); |
178
5e8c6857934c
implement charClassMerge
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
177
diff
changeset
|
204 return ccy; |
169
313f1c176328
implement mergeTransition
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
205 } |
313f1c176328
implement mergeTransition
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
168
diff
changeset
|
206 |
183
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
207 /** |
186
3e8aae8beba9
fix createTransitionGenerator()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
185
diff
changeset
|
208 作成する state を linked list |
3e8aae8beba9
fix createTransitionGenerator()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
185
diff
changeset
|
209 bitvector を index とした配列に BitVectorPtr を格納 |
3e8aae8beba9
fix createTransitionGenerator()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
185
diff
changeset
|
210 state に対応する NodePtr を |
183
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
211 */ |
190
3e8e5780ad4a
change node::State to State
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
189
diff
changeset
|
212 StatePtr createState(TGValue tg,NodePtr n) { |
3e8e5780ad4a
change node::State to State
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
189
diff
changeset
|
213 StatePtr s = NEW(State); |
183
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
214 s->next = tg.tg->currentState; |
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
215 tg.tg->currentState = s; |
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
216 s->node = n; |
187
ef798db705e9
remove some warnings and errors(not working)
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
186
diff
changeset
|
217 BitVector bi = createBitVector(n->stateNum); |
183
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
218 s->bitState = bi; |
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
219 s->cc = NULL; |
187
ef798db705e9
remove some warnings and errors(not working)
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
186
diff
changeset
|
220 return s; |
183
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
221 } |
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
222 |
185
d25f4f3b4c34
add comment
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
184
diff
changeset
|
223 /** |
186
3e8aae8beba9
fix createTransitionGenerator()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
185
diff
changeset
|
224 正規表現に必要な状態を探して、それぞれに番号を割り振る |
3e8aae8beba9
fix createTransitionGenerator()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
185
diff
changeset
|
225 前が * でない + は新しく状態を作る |
3e8aae8beba9
fix createTransitionGenerator()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
185
diff
changeset
|
226 * があったら、次の状態はその時の先頭の状態になる |
185
d25f4f3b4c34
add comment
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
184
diff
changeset
|
227 */ |
182
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
228 TGValue stateAllocate(NodePtr n,TGValue tg) { |
141
71f36a59cf6a
add appendState
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
139
diff
changeset
|
229 if (n->tokenType == '+') { |
182
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
230 TGValue tgLeft = stateAllocate(n->left,tg); |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
231 if (tgLeft.asterisk) { |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
232 TGValue tgRight = tgLeft; |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
233 tgRight.asterisk = false; |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
234 tgRight = stateAllocate(n->right,tgRight); |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
235 tgRight.asterisk = true; |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
236 return tgRight; |
142 | 237 } |
182
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
238 TGValue tgRight = tgLeft; |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
239 tgRight.stateBegin = ++tgRight.stateNum; |
183
7ae0a3070647
implement generateTransitionList
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
182
diff
changeset
|
240 n->right->state = createState(tgRight,n->right); |
182
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
241 return tgLeft; |
dbe004d03ef0
implement stateAllocate()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
181
diff
changeset
|
242 } else if (n->tokenType == '|') { |
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243 TGValue tgv = stateAllocate(n->left,tg); |
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244 TGValue tgv1 = stateAllocate(n->right,tgv); |
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245 return tgv1; |
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246 } else if (n->tokenType == '*') { |
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247 TGValue tgAstah = tg; |
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248 tgAstah.stateEnd = tgAstah.stateBegin; |
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249 tgAstah = stateAllocate(n->left,tgAstah); |
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250 tgAstah.asterisk = true; |
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251 return tgAstah; |
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252 } else if (n->tokenType == 'c' || n->tokenType == 'a'){ |
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253 TGValue tgv = tg; |
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254 tgv.asterisk = false; |
183
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255 n->stateNum = tg.stateBegin; |
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256 n->nextStateNum = tg.stateEnd; |
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257 return tgv; |
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258 } else { |
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259 return tg; |
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260 } |
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261 } |
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262 |
185
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263 /** |
186
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264 割り当てられた状態に沿って charclass の行き先を書き換える |
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265 書き換えた charclass を merge する |
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266 前の部分に * がない + は新しい状態をつくるので、state を切り替えて生成する |
185
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267 */ |
183
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268 TGValue generateTransition(NodePtr n,TGValue tg) { |
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269 if (n->tokenType == '+') { |
185
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270 if (tg.asterisk) { |
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271 TGValue tgRight = tg; |
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272 tgRight.asterisk = false; |
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273 tgRight = generateTransition(n->right,tgRight); |
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274 tgRight.asterisk = true; |
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275 return tgRight; |
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276 } |
190
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277 StatePtr left = tg.tgState; |
187
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278 tg.tgState = n->left->state; |
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279 // tg.tg->stateArray[tg.tgState->bitState.bitContainer] = tg.tgState; |
183
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280 TGValue tgLeft = generateTransition(n->left,tg); |
187
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281 tg.tgState = left; |
183
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282 TGValue tgv1 = generateTransition(n->right,tgLeft); |
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283 return tgv1; |
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284 } else if (n->tokenType == '|') { |
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285 TGValue tgv = generateTransition(n->left,tg); |
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286 TGValue tgv1 = generateTransition(n->right,tgv); |
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287 return tgv1; |
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288 } else if (n->tokenType == '*') { |
187
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289 TGValue tgAstah = generateTransition(n->left,tg); |
185
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290 tgAstah.asterisk = true; |
183
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291 return tgAstah; |
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292 } else if (n->tokenType == 'c' || n->tokenType == 'a'){ |
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293 TGValue tgv = tg; |
185
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294 tgv.asterisk = false; |
183
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295 BitVector bi = createBitVector(n->nextStateNum); |
182
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296 setState(n->cc,bi); |
187
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297 tgv.tgState->cc = mergeTransition(tgv.tgState,n->cc); |
182
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298 return tgv; |
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299 } else { |
183
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300 return tg; |
182
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301 } |
141
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302 } |
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303 |
186
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304 TransitionGeneratorPtr createTransitionGenerator() { |
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305 TransitionGeneratorPtr tg = NEW(TransitionGenerator); |
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306 tg->stateMax = 0; |
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307 tg->stack = NULL; |
190
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308 tg->state = NEW(State); |
186
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309 tg->stateArray = NULL; |
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310 tg->currentState = NULL; |
175
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311 return tg; |
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312 } |
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313 |
187
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314 TransitionGeneratorPtr generateTransitionList(NodePtr n) { |
186
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315 TransitionGeneratorPtr tg = createTransitionGenerator(); |
183
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316 TGValue tgv; |
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317 tgv.asterisk = false; |
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318 tgv.tg = tg; |
188
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187
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319 tgv.tg->startState = createState(tgv,n); |
184
1da1b2eacb84
gather struct
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183
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320 NodePtr eof = createNode(NULL,'e',NULL,NULL,NULL); |
188
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321 tgv.tg->endState = createState(tgv,eof); |
183
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322 tgv.stateBegin = 0; |
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323 tgv.stateEnd = 1; |
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324 stateAllocate(n,tgv); |
187
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325 tgv.tg->stateMax = tg->stateMax; |
190
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changeset
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326 BitVector bi = createBitVector(tg->stateMax); |
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changeset
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327 tgv.tg->stateArray = (StatePtr)calloc(bi.bitContainer*2,sizeof(StatePtr)); |
183
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changeset
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328 generateTransition(n,tgv); |
141
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329 return tg; |
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changeset
|
330 } |
190
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331 |
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changeset
|
332 void printState(StatePtr state) { |
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189
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changeset
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333 printf("state : %lx\n",state->bitState.bitContainer); |
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189
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changeset
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334 long nodeNumber = 0; |
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189
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changeset
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335 if (state->node) { |
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336 printf("node : %c %d -> %d\n",state->node->tokenType,state->node->stateNum,state->node->nextStateNum); |
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189
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337 nodeNumber = state->node->stateNum; |
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189
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changeset
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338 } |
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changeset
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339 printCharacterClass(state->cc,nodeNumber,4); |
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340 } |
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341 |
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|
342 void printState(TransitionGeneratorPtr tg) { |
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343 StatePtr state = tg->currentState; |
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189
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changeset
|
344 for (;state;state = state->next) { |
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changeset
|
345 printState(state); |
3e8e5780ad4a
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189
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changeset
|
346 putchar('\n'); |
3e8e5780ad4a
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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189
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changeset
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347 } |
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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189
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changeset
|
348 } |