Mercurial > hg > Applications > Grep
annotate regexParser/transition.h @ 172:540fc12871d9 pairPro
remove some warnings and errors (not working)
author | Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 22 Dec 2015 15:56:33 +0900 |
parents | 313f1c176328 |
children | cca8bb5aeded |
rev | line source |
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1 #include "bitVector.h" |
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2 |
110 | 3 typedef struct transition { |
4 CharClassPtr condition; | |
5 struct transition *next; | |
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6 } Transition, *TransitionPtr; |
110 | 7 |
8 typedef struct state { | |
9 TransitionPtr transition; | |
10 struct state *next; | |
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11 } State, *StatePtr; |
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12 |
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13 TransitionPtr createTransition(CharClassPtr cc, BitVectorPtr state); |
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14 TransitionPtr appendTransition0(TransitionPtr curr,TransitionPtr next); |
84a2a5209d3a
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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15 TransitionPtr appendTransition(TransitionPtr curr,TransitionPtr next); |
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16 |
110 | 17 /* |
18 正規表現木を辿って transition のList をつくる | |
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19 CharClass のかさなりを判定して重なりのない新しいCharClassをつくる |
110 | 20 重なっている状態はbitvectorのorをとる |
21 重なっている状態はそれぞれの状態について木をたどる | |
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22 |
110 | 23 nextState == 0 は正規表現の末端を表す |
24 nextState == 1 は受理状態を表す | |
25 正規表現のノードの番号 n に対応する 2^n のbitをセットした状態 | |
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26 |
110 | 27 | の場合は両方のListを結合する |
28 + の場合は左のノードに * がある場合は右のリストも結合する | |
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29 左のノードに*がない場合は、右のほうだけみる |
110 | 30 * は直下のリストを使って、次の状態を自分自身にする |
31 */ |