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2003-11-18  Ulrich Drepper  <drepper@redhat.com>

	* posix/regexec.c (get_subexp): Adter calling get_subexp_seb
	reload buf and bkref_str.  Little optimization by avoiding memcmp.

2003-11-14  David Mosberger   <davidm@hpl.hp.com>
This commit is contained in:
Ulrich Drepper
2003-11-19 07:18:32 +00:00
parent c9002c1b7a
commit 3ee363e231
3 changed files with 15 additions and 3 deletions
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9
posix/regexec.c
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@ -2550,6 +2550,12 @@ get_subexp (preg, mctx, bkref_node, bkref_str_idx)
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. */
buf = (char *) re_string_get_buffer (mctx->input);
bkref_str = buf + bkref_str_idx;
if (err == REG_NOMATCH)
continue;
if (BE (err != REG_NOERROR, 0))
@ -2567,8 +2573,7 @@ get_subexp (preg, mctx, bkref_node, bkref_str_idx)
sl_str_off = sl_str - sub_top->str_idx;
/* The matched string by the sub expression match with the substring
at the back reference? */
if (sl_str_off > 0
&& memcmp (bkref_str++, buf + sl_str - 1, 1) != 0)
if (sl_str_off > 0 && *bkref_str++ != buf[sl_str - 1])
break; /* We don't need to search this sub expression any more. */
if (mctx->state_log[sl_str] == NULL)
continue;