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allow some prefixes that may squash the literal match to run eagerly

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This commit is contained in:
Alex Coyte
2016-06-24 09:28:42 +10:00
committed by Matthew Barr
parent f9ded59361
commit f166bc5658
34 changed files with 895 additions and 148 deletions
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40
src/nfa/castle.c
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@@ -979,6 +979,46 @@ char nfaExecCastle0_inAccept(const struct NFA *n, ReportID report,
return castleInAccept(c, q, report, q_cur_offset(q));
}
char nfaExecCastle0_inAnyAccept(const struct NFA *n, struct mq *q) {
assert(n && q);
assert(n->type == CASTLE_NFA_0);
DEBUG_PRINTF("entry\n");
const struct Castle *c = getImplNfa(n);
const u64a offset = q_cur_offset(q);
DEBUG_PRINTF("offset=%llu\n", offset);
if (c->exclusive) {
u8 *active = (u8 *)q->streamState;
u8 *groups = active + c->groupIterOffset;
for (u32 i = mmbit_iterate(groups, c->numGroups, MMB_INVALID);
i != MMB_INVALID; i = mmbit_iterate(groups, c->numGroups, i)) {
u8 *cur = active + i * c->activeIdxSize;
const u32 activeIdx = partial_load_u32(cur, c->activeIdxSize);
DEBUG_PRINTF("subcastle %u\n", activeIdx);
const struct SubCastle *sub = getSubCastle(c, activeIdx);
if (subCastleInAccept(c, q, sub->report, offset, activeIdx)) {
return 1;
}
}
}
if (c->exclusive != PURE_EXCLUSIVE) {
const u8 *active = (const u8 *)q->streamState + c->activeOffset;
for (u32 i = mmbit_iterate(active, c->numRepeats, MMB_INVALID);
i != MMB_INVALID; i = mmbit_iterate(active, c->numRepeats, i)) {
DEBUG_PRINTF("subcastle %u\n", i);
const struct SubCastle *sub = getSubCastle(c, i);
if (subCastleInAccept(c, q, sub->report, offset, i)) {
return 1;
}
}
}
return 0;
}
char nfaExecCastle0_queueInitState(UNUSED const struct NFA *n, struct mq *q) {
assert(n && q);
assert(n->type == CASTLE_NFA_0);