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