Mercurial > hg > Applications > Grep
diff regexParser/generateSequentialSearchCbC.cc @ 301:4cb6eea3ab12
add CbC version
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 04 Feb 2016 03:26:18 +0900 |
parents | |
children | 1d79e61a9365 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/regexParser/generateSequentialSearchCbC.cc Thu Feb 04 03:26:18 2016 +0900 @@ -0,0 +1,53 @@ +#include <stdio.h> +#include <stdlib.h> + +#include "generateSequentialSearch.h" +#include "subsetConstruction.h" + +void +generateState1(StatePtr state,long stateNum, bool accept, FILE *fp, TransitionGeneratorPtr tg) { + fprintf(fp,"__code state%lx(TSValue tsv) {\n",stateNum); + if (accept && state->accept) { + fputs(" tsv=tsv.tg->stateMatch(tsv);\n",fp); + } + fputs(" if (tsv.buff.buffptr >= tsv.buff.buffend) _exit(0);\n",fp); + CharClassWalkerPtr ccw = createCharClassWalker(state->cc); + if (hasNext(ccw)) fputs(" unsigned char c = *tsv.buff.buffptr++;\n",fp); + fputs(" if (0) ;\n",fp); + while (hasNext(ccw)) { + CharClassPtr cc = getNext(ccw); + unsigned long begin = cc->cond.range.begin; + unsigned long end = cc->cond.range.end; + BitVector bi = cc->nextState; + if (begin == end) { + fprintf(fp," else if (c=='%c') { goto state%lx(tsv);}\n",(unsigned char)begin, bi.bitContainer); + } else { + fprintf(fp," else if (c<'%c') { tsv=tsv.tg->stateSkip(tsv);goto state0(tsv);}\n",(unsigned char)begin); + fprintf(fp," else if (c<='%c') { goto state%lx(tsv);} \n",(unsigned char)end, bi.bitContainer); + } + } + free(ccw); + fprintf(fp," else { tsv=tsv.tg->stateSkip(tsv); goto state0(tsv);}\n"); + fputs("}\n\n",fp); +} + +void +exportState(TransitionGeneratorPtr tg) { + StatePtr state = tg->stateList; + FILE *fp = fopen("stateCbC.cc","w"); + if (fp==NULL) { + perror(""); + fprintf(stderr,"cannot write stateCbC.cc\n"); + exit(1); + } + for (;state;state = state->next) { + fprintf(fp,"__code state%lx(TSValue tsv);\n",state->bitState.bitContainer); + } + fputs("\n",fp); + // initial state must not accept empty string + generateState1(tg->stateList,0L,false,fp,tg); + for (state = tg->stateList;state;state = state->next) { + generateState1(state,state->bitState.bitContainer,true,fp,tg); + } + fclose(fp); +}