diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | posix/regcomp.c | 12 | ||||
| -rw-r--r-- | posix/regex_internal.c | 106 | ||||
| -rw-r--r-- | posix/regexec.c | 156 |
4 files changed, 150 insertions, 130 deletions
@@ -1,5 +1,9 @@ 2010-01-15 Ulrich Drepper <drepper@redhat.com> + * posix/regcomp.c: Fix a few more cases of ignored return values. + * posix/regex_internal.c: Likewise. + * posix/regexec.c: Likewise. + * include/features.h: _XOPEN_SOURCE_EXTENDED is not defined to be used without _XOPEN_SOURCE. Don't base any decisions on this macro if _XOPEN_SOURCE is not defined as well. @@ -13,7 +17,7 @@ * elf/elf.h (EF_S390_HIGH_GPRS): Added macro definition for the new elf header flag. -XS2010-01-13 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> +2010-01-13 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> * elf/dl-sysdep.c (_dl_sysdep_start): Added the auxv parameter to dl_main. diff --git a/posix/regcomp.c b/posix/regcomp.c index 542b848f14..63ef7683ca 100644 --- a/posix/regcomp.c +++ b/posix/regcomp.c @@ -999,7 +999,11 @@ create_initial_state (re_dfa_t *dfa) int dest_idx = dfa->edests[node_idx].elems[0]; if (!re_node_set_contains (&init_nodes, dest_idx)) { - re_node_set_merge (&init_nodes, dfa->eclosures + dest_idx); + reg_errcode_t err = re_node_set_merge (&init_nodes, + dfa->eclosures + + dest_idx); + if (err != REG_NOERROR) + return err; i = 0; } } @@ -1414,7 +1418,7 @@ link_nfa_nodes (void *extra, bin_tree_t *node) case OP_BACK_REF: dfa->nexts[idx] = node->next->node_idx; if (node->token.type == OP_BACK_REF) - re_node_set_init_1 (dfa->edests + idx, dfa->nexts[idx]); + err = re_node_set_init_1 (dfa->edests + idx, dfa->nexts[idx]); break; default: @@ -1690,7 +1694,9 @@ calc_eclosure_iter (re_node_set *new_set, re_dfa_t *dfa, int node, int root) else eclosure_elem = dfa->eclosures[edest]; /* Merge the epsilon closure of `edest'. */ - re_node_set_merge (&eclosure, &eclosure_elem); + err = re_node_set_merge (&eclosure, &eclosure_elem); + if (BE (err != REG_NOERROR, 0)) + return err; /* If the epsilon closure of `edest' is incomplete, the epsilon closure of this node is also incomplete. */ if (dfa->eclosures[edest].nelem == 0) diff --git a/posix/regex_internal.c b/posix/regex_internal.c index c9da2b961c..ff28e5fcb9 100644 --- a/posix/regex_internal.c +++ b/posix/regex_internal.c @@ -1,5 +1,5 @@ /* Extended regular expression matching and search library. - Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. + Copyright (C) 2002-2006, 2010 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>. @@ -36,7 +36,7 @@ static re_dfastate_t *create_cd_newstate (const re_dfa_t *dfa, re_string_reconstruct before using the object. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_string_allocate (re_string_t *pstr, const char *str, int len, int init_len, RE_TRANSLATE_TYPE trans, int icase, const re_dfa_t *dfa) { @@ -64,7 +64,7 @@ re_string_allocate (re_string_t *pstr, const char *str, int len, int init_len, /* This function allocate the buffers, and initialize them. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_string_construct (re_string_t *pstr, const char *str, int len, RE_TRANSLATE_TYPE trans, int icase, const re_dfa_t *dfa) { @@ -127,7 +127,7 @@ re_string_construct (re_string_t *pstr, const char *str, int len, /* Helper functions for re_string_allocate, and re_string_construct. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_string_realloc_buffers (re_string_t *pstr, int new_buf_len) { #ifdef RE_ENABLE_I18N @@ -260,7 +260,7 @@ build_wcs_buffer (re_string_t *pstr) but for REG_ICASE. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ build_wcs_upper_buffer (re_string_t *pstr) { mbstate_t prev_st; @@ -423,8 +423,8 @@ build_wcs_upper_buffer (re_string_t *pstr) src_idx += mbclen; continue; } - else - memcpy (pstr->mbs + byte_idx, p, mbclen); + else + memcpy (pstr->mbs + byte_idx, p, mbclen); } else memcpy (pstr->mbs + byte_idx, p, mbclen); @@ -559,7 +559,7 @@ re_string_translate_buffer (re_string_t *pstr) convert to upper case in case of REG_ICASE, apply translation. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_string_reconstruct (re_string_t *pstr, int idx, int eflags) { int offset = idx - pstr->raw_mbs_idx; @@ -951,7 +951,7 @@ re_string_context_at (const re_string_t *input, int idx, int eflags) /* Functions for set operation. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_alloc (re_node_set *set, int size) { set->alloc = size; @@ -963,7 +963,7 @@ re_node_set_alloc (re_node_set *set, int size) } static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_init_1 (re_node_set *set, int elem) { set->alloc = 1; @@ -979,7 +979,7 @@ re_node_set_init_1 (re_node_set *set, int elem) } static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_init_2 (re_node_set *set, int elem1, int elem2) { set->alloc = 2; @@ -1009,7 +1009,7 @@ re_node_set_init_2 (re_node_set *set, int elem1, int elem2) } static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_init_copy (re_node_set *dest, const re_node_set *src) { dest->nelem = src->nelem; @@ -1034,7 +1034,7 @@ re_node_set_init_copy (re_node_set *dest, const re_node_set *src) Note: We assume dest->elems is NULL, when dest->alloc is 0. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_add_intersect (re_node_set *dest, const re_node_set *src1, const re_node_set *src2) { @@ -1049,7 +1049,7 @@ re_node_set_add_intersect (re_node_set *dest, const re_node_set *src1, int new_alloc = src1->nelem + src2->nelem + dest->alloc; int *new_elems = re_realloc (dest->elems, int, new_alloc); if (BE (new_elems == NULL, 0)) - return REG_ESPACE; + return REG_ESPACE; dest->elems = new_elems; dest->alloc = new_alloc; } @@ -1068,8 +1068,8 @@ re_node_set_add_intersect (re_node_set *dest, const re_node_set *src1, while (id >= 0 && dest->elems[id] > src1->elems[i1]) --id; - if (id < 0 || dest->elems[id] != src1->elems[i1]) - dest->elems[--sbase] = src1->elems[i1]; + if (id < 0 || dest->elems[id] != src1->elems[i1]) + dest->elems[--sbase] = src1->elems[i1]; if (--i1 < 0 || --i2 < 0) break; @@ -1099,20 +1099,20 @@ re_node_set_add_intersect (re_node_set *dest, const re_node_set *src1, if (delta > 0 && id >= 0) for (;;) { - if (dest->elems[is] > dest->elems[id]) - { - /* Copy from the top. */ - dest->elems[id + delta--] = dest->elems[is--]; - if (delta == 0) - break; - } - else - { - /* Slide from the bottom. */ - dest->elems[id + delta] = dest->elems[id]; - if (--id < 0) - break; - } + if (dest->elems[is] > dest->elems[id]) + { + /* Copy from the top. */ + dest->elems[id + delta--] = dest->elems[is--]; + if (delta == 0) + break; + } + else + { + /* Slide from the bottom. */ + dest->elems[id + delta] = dest->elems[id]; + if (--id < 0) + break; + } } /* Copy remaining SRC elements. */ @@ -1125,7 +1125,7 @@ re_node_set_add_intersect (re_node_set *dest, const re_node_set *src1, DEST. Return value indicate the error code or REG_NOERROR if succeeded. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_init_union (re_node_set *dest, const re_node_set *src1, const re_node_set *src2) { @@ -1178,7 +1178,7 @@ re_node_set_init_union (re_node_set *dest, const re_node_set *src1, DEST. Return value indicate the error code or REG_NOERROR if succeeded. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_merge (re_node_set *dest, const re_node_set *src) { int is, id, sbase, delta; @@ -1207,11 +1207,11 @@ re_node_set_merge (re_node_set *dest, const re_node_set *src) is = src->nelem - 1, id = dest->nelem - 1; is >= 0 && id >= 0; ) { if (dest->elems[id] == src->elems[is]) - is--, id--; + is--, id--; else if (dest->elems[id] < src->elems[is]) - dest->elems[--sbase] = src->elems[is--]; + dest->elems[--sbase] = src->elems[is--]; else /* if (dest->elems[id] > src->elems[is]) */ - --id; + --id; } if (is >= 0) @@ -1233,21 +1233,21 @@ re_node_set_merge (re_node_set *dest, const re_node_set *src) for (;;) { if (dest->elems[is] > dest->elems[id]) - { + { /* Copy from the top. */ - dest->elems[id + delta--] = dest->elems[is--]; + dest->elems[id + delta--] = dest->elems[is--]; if (delta == 0) break; } else - { - /* Slide from the bottom. */ - dest->elems[id + delta] = dest->elems[id]; + { + /* Slide from the bottom. */ + dest->elems[id + delta] = dest->elems[id]; if (--id < 0) { /* Copy remaining SRC elements. */ memcpy (dest->elems, dest->elems + sbase, - delta * sizeof (int)); + delta * sizeof (int)); break; } } @@ -1261,7 +1261,7 @@ re_node_set_merge (re_node_set *dest, const re_node_set *src) return -1 if an error is occured, return 1 otherwise. */ static int -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_insert (re_node_set *set, int elem) { int idx; @@ -1299,12 +1299,12 @@ re_node_set_insert (re_node_set *set, int elem) { idx = 0; for (idx = set->nelem; idx > 0; idx--) - set->elems[idx] = set->elems[idx - 1]; + set->elems[idx] = set->elems[idx - 1]; } else { for (idx = set->nelem; set->elems[idx - 1] > elem; idx--) - set->elems[idx] = set->elems[idx - 1]; + set->elems[idx] = set->elems[idx - 1]; } /* Insert the new element. */ @@ -1318,7 +1318,7 @@ re_node_set_insert (re_node_set *set, int elem) Return -1 if an error is occured, return 1 otherwise. */ static int -internal_function +internal_function __attribute_warn_unused_result__ re_node_set_insert_last (re_node_set *set, int elem) { /* Realloc if we need. */ @@ -1458,7 +1458,7 @@ calc_state_hash (const re_node_set *nodes, unsigned int context) optimization. */ static re_dfastate_t * -internal_function +internal_function __attribute_warn_unused_result__ re_acquire_state (reg_errcode_t *err, const re_dfa_t *dfa, const re_node_set *nodes) { @@ -1502,7 +1502,7 @@ re_acquire_state (reg_errcode_t *err, const re_dfa_t *dfa, optimization. */ static re_dfastate_t * -internal_function +internal_function __attribute_warn_unused_result__ re_acquire_state_context (reg_errcode_t *err, const re_dfa_t *dfa, const re_node_set *nodes, unsigned int context) { @@ -1539,6 +1539,7 @@ re_acquire_state_context (reg_errcode_t *err, const re_dfa_t *dfa, indicates the error code if failed. */ static reg_errcode_t +__attribute_warn_unused_result__ register_state (const re_dfa_t *dfa, re_dfastate_t *newstate, unsigned int hash) { @@ -1554,7 +1555,8 @@ register_state (const re_dfa_t *dfa, re_dfastate_t *newstate, { int elem = newstate->nodes.elems[i]; if (!IS_EPSILON_NODE (dfa->nodes[elem].type)) - re_node_set_insert_last (&newstate->non_eps_nodes, elem); + if (re_node_set_insert_last (&newstate->non_eps_nodes, elem) < 0) + return REG_ESPACE; } spot = dfa->state_table + (hash & dfa->state_hash_mask); @@ -1592,7 +1594,7 @@ free_state (re_dfastate_t *state) Return the new state if succeeded, otherwise return NULL. */ static re_dfastate_t * -internal_function +internal_function __attribute_warn_unused_result__ create_ci_newstate (const re_dfa_t *dfa, const re_node_set *nodes, unsigned int hash) { @@ -1642,7 +1644,7 @@ create_ci_newstate (const re_dfa_t *dfa, const re_node_set *nodes, Return the new state if succeeded, otherwise return NULL. */ static re_dfastate_t * -internal_function +internal_function __attribute_warn_unused_result__ create_cd_newstate (const re_dfa_t *dfa, const re_node_set *nodes, unsigned int context, unsigned int hash) { @@ -1691,7 +1693,9 @@ create_cd_newstate (const re_dfa_t *dfa, const re_node_set *nodes, free_state (newstate); return NULL; } - re_node_set_init_copy (newstate->entrance_nodes, nodes); + if (re_node_set_init_copy (newstate->entrance_nodes, nodes) + != REG_NOERROR) + return NULL; nctx_nodes = 0; newstate->has_constraint = 1; } diff --git a/posix/regexec.c b/posix/regexec.c index 7bf0c08a78..b8db74062b 100644 --- a/posix/regexec.c +++ b/posix/regexec.c @@ -1,5 +1,5 @@ /* Extended regular expression matching and search library. - Copyright (C) 2002, 2003, 2004, 2005, 2007, 2009 Free Software Foundation, Inc. + Copyright (C) 2002-2005, 2007, 2009, 2010 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>. @@ -617,6 +617,7 @@ re_exec (s) (START + RANGE >= 0 && START + RANGE <= LENGTH) */ static reg_errcode_t +__attribute_warn_unused_result__ re_search_internal (preg, string, length, start, range, stop, nmatch, pmatch, eflags) const regex_t *preg; @@ -668,7 +669,7 @@ re_search_internal (preg, string, length, start, range, stop, nmatch, pmatch, || !preg->newline_anchor)) { if (start != 0 && start + range != 0) - return REG_NOMATCH; + return REG_NOMATCH; start = range = 0; } @@ -800,10 +801,10 @@ re_search_internal (preg, string, length, start, range, stop, nmatch, pmatch, break; match_first += incr; if (match_first < left_lim || match_first > right_lim) - { - err = REG_NOMATCH; - goto free_return; - } + { + err = REG_NOMATCH; + goto free_return; + } } break; } @@ -917,14 +918,14 @@ re_search_internal (preg, string, length, start, range, stop, nmatch, pmatch, } if (dfa->subexp_map) - for (reg_idx = 0; reg_idx + 1 < nmatch; reg_idx++) - if (dfa->subexp_map[reg_idx] != reg_idx) - { - pmatch[reg_idx + 1].rm_so - = pmatch[dfa->subexp_map[reg_idx] + 1].rm_so; - pmatch[reg_idx + 1].rm_eo - = pmatch[dfa->subexp_map[reg_idx] + 1].rm_eo; - } + for (reg_idx = 0; reg_idx + 1 < nmatch; reg_idx++) + if (dfa->subexp_map[reg_idx] != reg_idx) + { + pmatch[reg_idx + 1].rm_so + = pmatch[dfa->subexp_map[reg_idx] + 1].rm_so; + pmatch[reg_idx + 1].rm_eo + = pmatch[dfa->subexp_map[reg_idx] + 1].rm_eo; + } } free_return: @@ -936,6 +937,7 @@ re_search_internal (preg, string, length, start, range, stop, nmatch, pmatch, } static reg_errcode_t +__attribute_warn_unused_result__ prune_impossible_nodes (mctx) re_match_context_t *mctx; { @@ -1069,7 +1071,7 @@ acquire_init_state_context (reg_errcode_t *err, const re_match_context_t *mctx, index of the buffer. */ static int -internal_function +internal_function __attribute_warn_unused_result__ check_matching (re_match_context_t *mctx, int fl_longest_match, int *p_match_first) { @@ -1108,7 +1110,7 @@ check_matching (re_match_context_t *mctx, int fl_longest_match, { err = transit_state_bkref (mctx, &cur_state->nodes); if (BE (err != REG_NOERROR, 0)) - return err; + return err; } } } @@ -1135,16 +1137,16 @@ check_matching (re_match_context_t *mctx, int fl_longest_match, int next_char_idx = re_string_cur_idx (&mctx->input) + 1; if (BE (next_char_idx >= mctx->input.bufs_len, 0) - || (BE (next_char_idx >= mctx->input.valid_len, 0) - && mctx->input.valid_len < mctx->input.len)) - { - err = extend_buffers (mctx); - if (BE (err != REG_NOERROR, 0)) + || (BE (next_char_idx >= mctx->input.valid_len, 0) + && mctx->input.valid_len < mctx->input.len)) + { + err = extend_buffers (mctx); + if (BE (err != REG_NOERROR, 0)) { assert (err == REG_ESPACE); return -2; } - } + } cur_state = transit_state (&err, mctx, cur_state); if (mctx->state_log != NULL) @@ -1263,20 +1265,20 @@ proceed_next_node (const re_match_context_t *mctx, int nregs, regmatch_t *regs, int candidate = edests->elems[i]; if (!re_node_set_contains (cur_nodes, candidate)) continue; - if (dest_node == -1) + if (dest_node == -1) dest_node = candidate; - else + else { /* In order to avoid infinite loop like "(a*)*", return the second - epsilon-transition if the first was already considered. */ + epsilon-transition if the first was already considered. */ if (re_node_set_contains (eps_via_nodes, dest_node)) - return candidate; + return candidate; /* Otherwise, push the second epsilon-transition on the fail stack. */ else if (fs != NULL && push_fail_stack (fs, *pidx, candidate, nregs, regs, - eps_via_nodes)) + eps_via_nodes)) return -2; /* We know we are going to exit. */ @@ -1342,7 +1344,7 @@ proceed_next_node (const re_match_context_t *mctx, int nregs, regmatch_t *regs, } static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ push_fail_stack (struct re_fail_stack_t *fs, int str_idx, int dest_node, int nregs, regmatch_t *regs, re_node_set *eps_via_nodes) { @@ -1389,7 +1391,7 @@ pop_fail_stack (struct re_fail_stack_t *fs, int *pidx, int nregs, pmatch[i].rm_so == pmatch[i].rm_eo == -1 for 0 < i < nmatch. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ set_regs (const regex_t *preg, const re_match_context_t *mctx, size_t nmatch, regmatch_t *pmatch, int fl_backtrack) { @@ -1624,7 +1626,7 @@ sift_states_backward (const re_match_context_t *mctx, re_sift_context_t *sctx) if (mctx->state_log[str_idx]) { err = build_sifted_states (mctx, sctx, str_idx, &cur_dest); - if (BE (err != REG_NOERROR, 0)) + if (BE (err != REG_NOERROR, 0)) goto free_return; } @@ -1643,7 +1645,7 @@ sift_states_backward (const re_match_context_t *mctx, re_sift_context_t *sctx) } static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ build_sifted_states (const re_match_context_t *mctx, re_sift_context_t *sctx, int str_idx, re_node_set *cur_dest) { @@ -1805,7 +1807,7 @@ update_cur_sifted_state (const re_match_context_t *mctx, } static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ add_epsilon_src_nodes (const re_dfa_t *dfa, re_node_set *dest_nodes, const re_node_set *candidates) { @@ -1820,10 +1822,14 @@ add_epsilon_src_nodes (const re_dfa_t *dfa, re_node_set *dest_nodes, { err = re_node_set_alloc (&state->inveclosure, dest_nodes->nelem); if (BE (err != REG_NOERROR, 0)) - return REG_ESPACE; + return REG_ESPACE; for (i = 0; i < dest_nodes->nelem; i++) - re_node_set_merge (&state->inveclosure, - dfa->inveclosures + dest_nodes->elems[i]); + { + err = re_node_set_merge (&state->inveclosure, + dfa->inveclosures + dest_nodes->elems[i]); + if (BE (err != REG_NOERROR, 0)) + return REG_ESPACE; + } } return re_node_set_add_intersect (dest_nodes, candidates, &state->inveclosure); @@ -1935,7 +1941,7 @@ check_dst_limits_calc_pos_1 (const re_match_context_t *mctx, int boundaries, { struct re_backref_cache_entry *ent = mctx->bkref_ents + bkref_idx; do - { + { int dst, cpos; if (ent->node != node) @@ -1956,9 +1962,9 @@ check_dst_limits_calc_pos_1 (const re_match_context_t *mctx, int boundaries, if (dst == from_node) { if (boundaries & 1) - return -1; + return -1; else /* if (boundaries & 2) */ - return 0; + return 0; } cpos = @@ -1972,7 +1978,7 @@ check_dst_limits_calc_pos_1 (const re_match_context_t *mctx, int boundaries, if (subexp_idx < BITSET_WORD_BITS) ent->eps_reachable_subexps_map &= ~((bitset_word_t) 1 << subexp_idx); - } + } while (ent++->more); } break; @@ -2114,7 +2120,7 @@ check_subexp_limits (const re_dfa_t *dfa, re_node_set *dest_nodes, } static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ sift_states_bkref (const re_match_context_t *mctx, re_sift_context_t *sctx, int str_idx, const re_node_set *candidates) { @@ -2197,7 +2203,7 @@ sift_states_bkref (const re_match_context_t *mctx, re_sift_context_t *sctx, re_node_set_remove (&local_sctx.limits, enabled_idx); /* mctx->bkref_ents may have changed, reload the pointer. */ - entry = mctx->bkref_ents + enabled_idx; + entry = mctx->bkref_ents + enabled_idx; } while (enabled_idx++, entry++->more); } @@ -2244,7 +2250,7 @@ sift_states_iter_mb (const re_match_context_t *mctx, re_sift_context_t *sctx, update the destination of STATE_LOG. */ static re_dfastate_t * -internal_function +internal_function __attribute_warn_unused_result__ transit_state (reg_errcode_t *err, re_match_context_t *mctx, re_dfastate_t *state) { @@ -2278,7 +2284,7 @@ transit_state (reg_errcode_t *err, re_match_context_t *mctx, trtable = state->word_trtable; if (BE (trtable != NULL, 1)) - { + { unsigned int context; context = re_string_context_at (&mctx->input, @@ -2324,21 +2330,21 @@ merge_state_with_log (reg_errcode_t *err, re_match_context_t *mctx, unsigned int context; re_node_set next_nodes, *log_nodes, *table_nodes = NULL; /* If (state_log[cur_idx] != 0), it implies that cur_idx is - the destination of a multibyte char/collating element/ - back reference. Then the next state is the union set of - these destinations and the results of the transition table. */ + the destination of a multibyte char/collating element/ + back reference. Then the next state is the union set of + these destinations and the results of the transition table. */ pstate = mctx->state_log[cur_idx]; log_nodes = pstate->entrance_nodes; if (next_state != NULL) - { - table_nodes = next_state->entrance_nodes; - *err = re_node_set_init_union (&next_nodes, table_nodes, + { + table_nodes = next_state->entrance_nodes; + *err = re_node_set_init_union (&next_nodes, table_nodes, log_nodes); - if (BE (*err != REG_NOERROR, 0)) + if (BE (*err != REG_NOERROR, 0)) return NULL; - } + } else - next_nodes = *log_nodes; + next_nodes = *log_nodes; /* Note: We already add the nodes of the initial state, then we don't need to add them here. */ @@ -2346,12 +2352,12 @@ merge_state_with_log (reg_errcode_t *err, re_match_context_t *mctx, re_string_cur_idx (&mctx->input) - 1, mctx->eflags); next_state = mctx->state_log[cur_idx] - = re_acquire_state_context (err, dfa, &next_nodes, context); + = re_acquire_state_context (err, dfa, &next_nodes, context); /* We don't need to check errors here, since the return value of - this function is next_state and ERR is already set. */ + this function is next_state and ERR is already set. */ if (table_nodes != NULL) - re_node_set_free (&next_nodes); + re_node_set_free (&next_nodes); } if (BE (dfa->nbackref, 0) && next_state != NULL) @@ -2392,9 +2398,9 @@ find_recover_state (reg_errcode_t *err, re_match_context_t *mctx) do { - if (++cur_str_idx > max) - return NULL; - re_string_skip_bytes (&mctx->input, 1); + if (++cur_str_idx > max) + return NULL; + re_string_skip_bytes (&mctx->input, 1); } while (mctx->state_log[cur_str_idx] == NULL); @@ -2501,7 +2507,7 @@ transit_state_mb (re_match_context_t *mctx, re_dfastate_t *pstate) re_dfastate_t *dest_state; if (!dfa->nodes[cur_node_idx].accept_mb) - continue; + continue; if (dfa->nodes[cur_node_idx].constraint) { @@ -2669,7 +2675,7 @@ transit_state_bkref (re_match_context_t *mctx, const re_node_set *nodes) delay these checking for prune_impossible_nodes(). */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ get_subexp (re_match_context_t *mctx, int bkref_node, int bkref_str_idx) { const re_dfa_t *const dfa = mctx->dfa; @@ -2682,7 +2688,7 @@ get_subexp (re_match_context_t *mctx, int bkref_node, int bkref_str_idx) const struct re_backref_cache_entry *entry = mctx->bkref_ents + cache_idx; do - if (entry->node == bkref_node) + if (entry->node == bkref_node) return REG_NOERROR; /* We already checked it. */ while (entry++->more); } @@ -2869,7 +2875,7 @@ find_subexp_node (const re_dfa_t *dfa, const re_node_set *nodes, Return REG_NOERROR if it can arrive, or REG_NOMATCH otherwise. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ check_arrival (re_match_context_t *mctx, state_array_t *path, int top_node, int top_str, int last_node, int last_str, int type) { @@ -3030,7 +3036,7 @@ check_arrival (re_match_context_t *mctx, state_array_t *path, int top_node, Can't we unify them? */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ check_arrival_add_next_nodes (re_match_context_t *mctx, int str_idx, re_node_set *cur_nodes, re_node_set *next_nodes) { @@ -3162,7 +3168,7 @@ check_arrival_expand_ecl (const re_dfa_t *dfa, re_node_set *cur_nodes, problematic append it to DST_NODES. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ check_arrival_expand_ecl_sub (const re_dfa_t *dfa, re_node_set *dst_nodes, int target, int ex_subexp, int type) { @@ -3206,7 +3212,7 @@ check_arrival_expand_ecl_sub (const re_dfa_t *dfa, re_node_set *dst_nodes, in MCTX->BKREF_ENTS. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ expand_bkref_cache (re_match_context_t *mctx, re_node_set *cur_nodes, int cur_str, int subexp_num, int type) { @@ -3564,13 +3570,13 @@ group_nodes_into_DFAstates (const re_dfa_t *dfa, const re_dfastate_t *state, } #ifdef RE_ENABLE_I18N else if (type == OP_UTF8_PERIOD) - { + { memset (accepts, '\xff', sizeof (bitset_t) / 2); if (!(dfa->syntax & RE_DOT_NEWLINE)) bitset_clear (accepts, '\n'); if (dfa->syntax & RE_DOT_NOT_NULL) bitset_clear (accepts, '\0'); - } + } #endif else continue; @@ -3775,7 +3781,7 @@ check_node_accept_bytes (const re_dfa_t *dfa, int node_idx, if (node->type == OP_PERIOD) { if (char_len <= 1) - return 0; + return 0; /* FIXME: I don't think this if is needed, as both '\n' and '\0' are char_len == 1. */ /* '.' accepts any one character except the following two cases. */ @@ -4025,18 +4031,18 @@ check_node_accept (const re_match_context_t *mctx, const re_token_t *node, { case CHARACTER: if (node->opr.c != ch) - return 0; + return 0; break; case SIMPLE_BRACKET: if (!bitset_contain (node->opr.sbcset, ch)) - return 0; + return 0; break; #ifdef RE_ENABLE_I18N case OP_UTF8_PERIOD: if (ch >= 0x80) - return 0; + return 0; /* FALLTHROUGH */ #endif case OP_PERIOD: @@ -4065,7 +4071,7 @@ check_node_accept (const re_match_context_t *mctx, const re_token_t *node, /* Extend the buffers, if the buffers have run out. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ extend_buffers (re_match_context_t *mctx) { reg_errcode_t ret; @@ -4124,7 +4130,7 @@ extend_buffers (re_match_context_t *mctx) /* Initialize MCTX. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ match_ctx_init (re_match_context_t *mctx, int eflags, int n) { mctx->eflags = eflags; @@ -4197,7 +4203,7 @@ match_ctx_free (re_match_context_t *mctx) */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ match_ctx_add_entry (re_match_context_t *mctx, int node, int str_idx, int from, int to) { @@ -4269,7 +4275,7 @@ search_cur_bkref_entry (const re_match_context_t *mctx, int str_idx) at STR_IDX. */ static reg_errcode_t -internal_function +internal_function __attribute_warn_unused_result__ match_ctx_add_subtop (re_match_context_t *mctx, int node, int str_idx) { #ifdef DEBUG |