diff options
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/bug-regex11.c | 4 | ||||
| -rw-r--r-- | posix/regexec.c | 25 |
2 files changed, 17 insertions, 12 deletions
diff --git a/posix/bug-regex11.c b/posix/bug-regex11.c index 29fa7def79..fdc78f9412 100644 --- a/posix/bug-regex11.c +++ b/posix/bug-regex11.c @@ -69,6 +69,10 @@ struct { "a()d(b)\\1c\\2", "adbcb", REG_EXTENDED, 3, { { 0, 5 }, { 1, 1 }, { 2, 3 } } }, { "a(b())\\2\\1", "abbbb", REG_EXTENDED, 3, { { 0, 3 }, { 1, 2 }, { 2, 2 } } }, { "(bb())\\2\\1", "bbbb", REG_EXTENDED, 3, { { 0, 4 }, { 0, 2 }, { 2, 2 } } }, + { "^([^,]*),\\1,\\1$", "a,a,a", REG_EXTENDED, 2, { { 0, 5 }, { 0, 1 } } }, + { "^([^,]*),\\1,\\1$", "ab,ab,ab", REG_EXTENDED, 2, { { 0, 8 }, { 0, 2 } } }, + { "^([^,]*),\\1,\\1,\\1$", "abc,abc,abc,abc", REG_EXTENDED, 2, + { { 0, 15 }, { 0, 3 } } }, { "^(.?)(.?)(.?)(.?)(.?).?\\5\\4\\3\\2\\1$", "level", REG_NOSUB | REG_EXTENDED, 0, { { -1, -1 } } }, { "^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$|^.?$", diff --git a/posix/regexec.c b/posix/regexec.c index afaf1bb7b7..f1cef5b70c 100644 --- a/posix/regexec.c +++ b/posix/regexec.c @@ -117,8 +117,8 @@ static reg_errcode_t sift_states_bkref (const regex_t *preg, re_match_context_t *mctx, re_sift_context_t *sctx, int str_idx, re_node_set *dest_nodes) internal_function; -static reg_errcode_t clean_state_log_if_need (re_match_context_t *mctx, - int next_state_log_idx) internal_function; +static reg_errcode_t clean_state_log_if_needed (re_match_context_t *mctx, + int next_state_log_idx) internal_function; static reg_errcode_t merge_state_array (re_dfa_t *dfa, re_dfastate_t **dst, re_dfastate_t **src, int num) internal_function; static re_dfastate_t *transit_state (reg_errcode_t *err, const regex_t *preg, @@ -1553,7 +1553,7 @@ sift_states_backward (preg, mctx, sctx) /* Helper functions. */ static reg_errcode_t -clean_state_log_if_need (mctx, next_state_log_idx) +clean_state_log_if_needed (mctx, next_state_log_idx) re_match_context_t *mctx; int next_state_log_idx; { @@ -2392,7 +2392,7 @@ transit_state_mb (preg, pstate, mctx) dest_idx = re_string_cur_idx (mctx->input) + naccepted; mctx->max_mb_elem_len = ((mctx->max_mb_elem_len < naccepted) ? naccepted : mctx->max_mb_elem_len); - err = clean_state_log_if_need (mctx, dest_idx); + err = clean_state_log_if_needed (mctx, dest_idx); if (BE (err != REG_NOERROR, 0)) return err; #ifdef DEBUG @@ -2569,14 +2569,14 @@ get_subexp (preg, mctx, bkref_node, bkref_str_idx) reg_errcode_t err; re_sub_match_top_t *sub_top = mctx->sub_tops[sub_top_idx]; re_sub_match_last_t *sub_last; - int sub_last_idx, sl_str; + int sub_last_idx, sl_str, bkref_str_off; const char *bkref_str; if (dfa->nodes[sub_top->node].opr.idx != subexp_num) continue; /* It isn't related. */ sl_str = sub_top->str_idx; - bkref_str = buf + bkref_str_idx; + bkref_str_off = bkref_str_idx; /* At first, check the last node of sub expressions we already evaluated. */ for (sub_last_idx = 0; sub_last_idx < sub_top->nlasts; ++sub_last_idx) @@ -2587,23 +2587,24 @@ get_subexp (preg, mctx, bkref_node, bkref_str_idx) /* The matched string by the sub expression match with the substring at the back reference? */ if (sl_str_diff > 0 - && memcmp (bkref_str, buf + sl_str, sl_str_diff) != 0) + && memcmp (buf + bkref_str_off, buf + sl_str, sl_str_diff) != 0) break; /* We don't need to search this sub expression any more. */ - bkref_str += sl_str_diff; + bkref_str_off += sl_str_diff; sl_str += sl_str_diff; err = get_subexp_sub (preg, mctx, sub_top, sub_last, bkref_node, bkref_str_idx); - /* Reload buf and bkref_str, since the preceding call might - have reallocated the buffer. */ + /* Reload buf, since the preceding call might have reallocated + the buffer. */ buf = (const char *) re_string_get_buffer (mctx->input); - bkref_str = buf + bkref_str_idx; if (err == REG_NOMATCH) continue; if (BE (err != REG_NOERROR, 0)) return err; } + bkref_str = buf + bkref_str_off; + if (sub_last_idx < sub_top->nlasts) continue; if (sub_last_idx > 0) @@ -2678,7 +2679,7 @@ get_subexp_sub (preg, mctx, sub_top, sub_last, bkref_node, bkref_str) if (BE (err != REG_NOERROR, 0)) return err; to_idx = bkref_str + sub_last->str_idx - sub_top->str_idx; - clean_state_log_if_need (mctx, to_idx); + clean_state_log_if_needed (mctx, to_idx); return REG_NOERROR; } |