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annotate regexParser/generateSequentialSearch.cc @ 298:63213964502a

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refactoring ....
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 03 Feb 2016 12:24:34 +0900
parents f2491681914e
children 1188debbef10
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3
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4 #include "generateSequentialSearch.h"
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5 #include "subsetConstruction.h"
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6
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7 void
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8 generateState1(StatePtr state,long stateNum, bool accept, FILE *fp, TransitionGeneratorPtr tg) {
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9 fprintf(fp,"TSValue state%lx(TSValue tsv) {\n",stateNum);
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10 if (accept && state->accept) {
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11 fputs(" tsv=tsv.tg->stateMatch(tsv);\n",fp);
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12 }
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13 fputs(" if (tsv.buff.buffptr >= tsv.buff.buffend) return tsv;\n",fp);
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14 CharClassWalkerPtr ccw = createCharClassWalker(state->cc);
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15 if (hasNext(ccw)) fputs(" unsigned char c = *tsv.buff.buffptr++;\n",fp);
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16 fputs(" if (0) ;\n",fp);
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17 while (hasNext(ccw)) {
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18 CharClassPtr cc = getNext(ccw);
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19 unsigned long begin = cc->cond.range.begin;
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20 unsigned long end = cc->cond.range.end;
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21 BitVector bi = cc->nextState;
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22 if (begin == end) {
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23 fprintf(fp," else if (c=='%c') { return state%lx(tsv);}\n",(unsigned char)begin, bi.bitContainer);
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24 } else {
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25 fprintf(fp," else if (c<'%c') { tsv=tsv.tg->stateSkip(tsv);return state0(tsv);}\n",(unsigned char)begin);
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26 fprintf(fp," else if (c<='%c') { return state%lx(tsv);} \n",(unsigned char)end, bi.bitContainer);
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27 }
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28 }
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29 free(ccw);
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30 fprintf(fp," else { tsv=tsv.tg->stateSkip(tsv); return state0(tsv);}\n");
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31 fputs("}\n\n",fp);
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32 }
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33
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34 void
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35 exportState(TransitionGeneratorPtr tg) {
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36 StatePtr state = tg->stateList;
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37 FILE *fp = fopen("state.cc","w");
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38 if (fp==NULL) {
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39 perror("");
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40 fprintf(stderr,"cannot write state.cc\n");
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41 exit(1);
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42 }
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43 for (;state;state = state->next) {
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44 fprintf(fp,"TSValue state%lx(TSValue tsv);\n",state->bitState.bitContainer);
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45 }
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46 fputs("\n",fp);
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47 // initial state must not accept empty string
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48 generateState1(tg->stateList,0L,false,fp,tg);
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49 for (state = tg->stateList;state;state = state->next) {
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50 generateState1(state,state->bitState.bitContainer,true,fp,tg);
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51 }
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52 fclose(fp);
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53 }