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annotate regexParser/transition.h @ 182:dbe004d03ef0 pairPro

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implement stateAllocate()
author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Thu, 24 Dec 2015 19:14:49 +0900
parents d97bcab546e8
children 1da1b2eacb84
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include "bitVector.h"
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2
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3 typedef struct state {
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3be0fbcd4b52 implement createTransitionGenerator
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4 BitVector bitState;
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5e8c6857934c implement charClassMerge
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5 CharClassPtr cc;
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6 NodePtr node;
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7 struct state *next;
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8 } State, *StatePtr;
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9
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10 StatePtr createState(BitVector bi);
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c092dd0e1ae0 implement appendState() and serchState()
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11 StatePtr appendState(StatePtr x,StatePtr y);
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12 /*
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13 正規表現木を辿って transition のList をつくる
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14 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
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15 重なっている状態はbitvectorのorをとる
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16 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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17
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18 nextState == 0 は正規表現の末端を表す
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19 nextState == 1 は受理状態を表す
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20 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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21
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22 | の場合は両方のListを結合する
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23 + 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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24 左のノードに*がない場合は、右のほうだけみる
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25 * は直下のリストを使って、次の状態を自分自身にする
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26 */