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#include <u.h>
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#include <libc.h>
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#include <bio.h>
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#include <regexp.h>
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#include "/sys/src/libregexp/regcomp.h"
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#include "dfa.h"
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#define DUMP
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void
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dump(Dreprog *pp)
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{
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	int i, j;
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	Dreinst *l;
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	print("start %ld %ld %ld %ld\n",
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		pp->start[0]-pp->inst,
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		pp->start[1]-pp->inst,
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		pp->start[2]-pp->inst,
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		pp->start[3]-pp->inst);
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	for(i=0; i<pp->ninst; i++){
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		l = &pp->inst[i];
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		print("%d:", i);
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		for(j=0; j<l->nc; j++){
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			print(" [");
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			if(j == 0)
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				if(l->c[j].start > 1)
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					print("<bad start %d>\n", l->c[j].start);
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			if(j != 0)
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				print("%C%s", l->c[j].start&0xFFFF, (l->c[j].start&0x10000) ? "$" : "");
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			print("-");
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			if(j != l->nc-1)
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				print("%C%s", (l->c[j+1].start&0xFFFF)-1, (l->c[j+1].start&0x10000) ? "$" : "");
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			print("] %ld", l->c[j].next - pp->inst);
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		}
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		if(l->isfinal)
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			print(" final");
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		if(l->isloop)
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			print(" loop");
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		print("\n");
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	}
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}
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void
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main(int argc, char **argv)
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{
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	int i;
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	Reprog *p;
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	Dreprog *dp;
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	i = 1;
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		p = regcomp(argv[i]);
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		if(p == 0){
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			print("=== %s: bad regexp\n", argv[i]);
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		}
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	//	print("=== %s\n", argv[i]);
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	//	rdump(p);
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		dp = dregcvt(p);
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		print("=== dfa\n");
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		dump(dp);
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	for(i=2; i<argc; i++)
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		print("match %d\n", dregexec(dp, argv[i], 1));
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	exits(0);
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}