diff options
Diffstat (limited to 'posix/regexec.c')
| -rw-r--r-- | posix/regexec.c | 54 |
1 files changed, 29 insertions, 25 deletions
diff --git a/posix/regexec.c b/posix/regexec.c index 9720879722..53f49ea972 100644 --- a/posix/regexec.c +++ b/posix/regexec.c @@ -1439,7 +1439,7 @@ sift_states_backward (preg, mctx, sctx) int naccepted = 0; re_token_type_t type = dfa->nodes[prev_node].type; - if (IS_EPSILON_NODE(type)) + if (IS_EPSILON_NODE (type)) continue; #ifdef RE_ENABLE_I18N /* If the node may accept `multi byte'. */ @@ -1836,7 +1836,7 @@ check_subexp_limits (dfa, dest_nodes, candidates, limits, bkref_ents, str_idx) for (node_idx = 0; node_idx < dest_nodes->nelem; ++node_idx) { int node = dest_nodes->elems[node_idx]; - re_token_type_t type= dfa->nodes[node].type; + re_token_type_t type = dfa->nodes[node].type; if (type == OP_OPEN_SUBEXP && subexp_idx == dfa->nodes[node].opr.idx) ops_node = node; @@ -1849,34 +1849,38 @@ check_subexp_limits (dfa, dest_nodes, candidates, limits, bkref_ents, str_idx) /* Note that (ent->subexp_to = str_idx != ent->subexp_from). */ if (ops_node >= 0) { - err = sub_epsilon_src_nodes(dfa, ops_node, dest_nodes, - candidates); + err = sub_epsilon_src_nodes (dfa, ops_node, dest_nodes, + candidates); if (BE (err != REG_NOERROR, 0)) return err; } + /* Check the limitation of the close subexpression. */ - for (node_idx = 0; node_idx < dest_nodes->nelem; ++node_idx) - { - int node = dest_nodes->elems[node_idx]; - if (!re_node_set_contains (dfa->inveclosures + node, cls_node) - && !re_node_set_contains (dfa->eclosures + node, cls_node)) - { - /* It is against this limitation. - Remove it form the current sifted state. */ - err = sub_epsilon_src_nodes(dfa, node, dest_nodes, - candidates); - if (BE (err != REG_NOERROR, 0)) - return err; - --node_idx; - } - } + if (cls_node >= 0) + for (node_idx = 0; node_idx < dest_nodes->nelem; ++node_idx) + { + int node = dest_nodes->elems[node_idx]; + if (!re_node_set_contains (dfa->inveclosures + node, + cls_node) + && !re_node_set_contains (dfa->eclosures + node, + cls_node)) + { + /* It is against this limitation. + Remove it form the current sifted state. */ + err = sub_epsilon_src_nodes (dfa, node, dest_nodes, + candidates); + if (BE (err != REG_NOERROR, 0)) + return err; + --node_idx; + } + } } else /* (ent->subexp_to != str_idx) */ { for (node_idx = 0; node_idx < dest_nodes->nelem; ++node_idx) { int node = dest_nodes->elems[node_idx]; - re_token_type_t type= dfa->nodes[node].type; + re_token_type_t type = dfa->nodes[node].type; if (type == OP_CLOSE_SUBEXP || type == OP_OPEN_SUBEXP) { if (subexp_idx != dfa->nodes[node].opr.idx) @@ -1886,8 +1890,8 @@ check_subexp_limits (dfa, dest_nodes, candidates, limits, bkref_ents, str_idx) { /* It is against this limitation. Remove it form the current sifted state. */ - err = sub_epsilon_src_nodes(dfa, node, dest_nodes, - candidates); + err = sub_epsilon_src_nodes (dfa, node, dest_nodes, + candidates); if (BE (err != REG_NOERROR, 0)) return err; } @@ -2756,8 +2760,8 @@ check_arrival (preg, mctx, path, top_node, top_str, last_node, last_str, } if (cur_state) { - err = check_arrival_add_next_nodes(preg, dfa, mctx, str_idx, - &cur_state->nodes, &next_nodes); + err = check_arrival_add_next_nodes (preg, dfa, mctx, str_idx, + &cur_state->nodes, &next_nodes); if (BE (err != REG_NOERROR, 0)) { re_node_set_free (&next_nodes); @@ -2835,7 +2839,7 @@ check_arrival_add_next_nodes (preg, dfa, mctx, str_idx, cur_nodes, next_nodes) int naccepted = 0; int cur_node = cur_nodes->elems[cur_idx]; re_token_type_t type = dfa->nodes[cur_node].type; - if (IS_EPSILON_NODE(type)) + if (IS_EPSILON_NODE (type)) continue; #ifdef RE_ENABLE_I18N /* If the node may accept `multi byte'. */ |