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This commit is contained in:
Sergei Golubchik
2015-05-04 22:19:22 +02:00
parent 553b437d38
commit c4cc91cdc9
79 changed files with 10488 additions and 7168 deletions
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249
pcre/pcre_compile.c
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@ -1704,6 +1704,7 @@ Arguments:
utf TRUE in UTF-8 / UTF-16 / UTF-32 mode
atend TRUE if called when the pattern is complete
cd the "compile data" structure
recurses chain of recurse_check to catch mutual recursion
Returns: the fixed length,
or -1 if there is no fixed length,
@ -1713,10 +1714,11 @@ Returns: the fixed length,
*/
static int
find_fixedlength(pcre_uchar *code, BOOL utf, BOOL atend, compile_data *cd)
find_fixedlength(pcre_uchar *code, BOOL utf, BOOL atend, compile_data *cd,
recurse_check *recurses)
{
int length = -1;
recurse_check this_recurse;
register int branchlength = 0;
register pcre_uchar *cc = code + 1 + LINK_SIZE;
@ -1741,7 +1743,8 @@ for (;;)
case OP_ONCE:
case OP_ONCE_NC:
case OP_COND:
d = find_fixedlength(cc + ((op == OP_CBRA)? IMM2_SIZE : 0), utf, atend, cd);
d = find_fixedlength(cc + ((op == OP_CBRA)? IMM2_SIZE : 0), utf, atend, cd,
recurses);
if (d < 0) return d;
branchlength += d;
do cc += GET(cc, 1); while (*cc == OP_ALT);
@ -1775,7 +1778,15 @@ for (;;)
cs = ce = (pcre_uchar *)cd->start_code + GET(cc, 1); /* Start subpattern */
do ce += GET(ce, 1); while (*ce == OP_ALT); /* End subpattern */
if (cc > cs && cc < ce) return -1; /* Recursion */
d = find_fixedlength(cs + IMM2_SIZE, utf, atend, cd);
else /* Check for mutual recursion */
{
recurse_check *r = recurses;
for (r = recurses; r != NULL; r = r->prev) if (r->group == cs) break;
if (r != NULL) return -1; /* Mutual recursion */
}
this_recurse.prev = recurses;
this_recurse.group = cs;
d = find_fixedlength(cs + IMM2_SIZE, utf, atend, cd, &this_recurse);
if (d < 0) return d;
branchlength += d;
cc += 1 + LINK_SIZE;
@ -2129,32 +2140,60 @@ for (;;)
{
case OP_CHAR:
case OP_CHARI:
case OP_NOT:
case OP_NOTI:
case OP_EXACT:
case OP_EXACTI:
case OP_NOTEXACT:
case OP_NOTEXACTI:
case OP_UPTO:
case OP_UPTOI:
case OP_NOTUPTO:
case OP_NOTUPTOI:
case OP_MINUPTO:
case OP_MINUPTOI:
case OP_NOTMINUPTO:
case OP_NOTMINUPTOI:
case OP_POSUPTO:
case OP_POSUPTOI:
case OP_NOTPOSUPTO:
case OP_NOTPOSUPTOI:
case OP_STAR:
case OP_STARI:
case OP_NOTSTAR:
case OP_NOTSTARI:
case OP_MINSTAR:
case OP_MINSTARI:
case OP_NOTMINSTAR:
case OP_NOTMINSTARI:
case OP_POSSTAR:
case OP_POSSTARI:
case OP_NOTPOSSTAR:
case OP_NOTPOSSTARI:
case OP_PLUS:
case OP_PLUSI:
case OP_NOTPLUS:
case OP_NOTPLUSI:
case OP_MINPLUS:
case OP_MINPLUSI:
case OP_NOTMINPLUS:
case OP_NOTMINPLUSI:
case OP_POSPLUS:
case OP_POSPLUSI:
case OP_NOTPOSPLUS:
case OP_NOTPOSPLUSI:
case OP_QUERY:
case OP_QUERYI:
case OP_NOTQUERY:
case OP_NOTQUERYI:
case OP_MINQUERY:
case OP_MINQUERYI:
case OP_NOTMINQUERY:
case OP_NOTMINQUERYI:
case OP_POSQUERY:
case OP_POSQUERYI:
case OP_NOTPOSQUERY:
case OP_NOTPOSQUERYI:
if (HAS_EXTRALEN(code[-1])) code += GET_EXTRALEN(code[-1]);
break;
}
@ -2334,11 +2373,6 @@ Arguments:
Returns: TRUE if what is matched could be empty
*/
typedef struct recurse_check {
struct recurse_check *prev;
const pcre_uchar *group;
} recurse_check;
static BOOL
could_be_empty_branch(const pcre_uchar *code, const pcre_uchar *endcode,
BOOL utf, compile_data *cd, recurse_check *recurses)
@ -2469,8 +2503,8 @@ for (code = first_significant_code(code + PRIV(OP_lengths)[*code], TRUE);
empty_branch = FALSE;
do
{
if (!empty_branch && could_be_empty_branch(code, endcode, utf, cd, NULL))
empty_branch = TRUE;
if (!empty_branch && could_be_empty_branch(code, endcode, utf, cd,
recurses)) empty_branch = TRUE;
code += GET(code, 1);
}
while (*code == OP_ALT);
@ -3065,7 +3099,7 @@ Returns: TRUE if the auto-possessification is possible
static BOOL
compare_opcodes(const pcre_uchar *code, BOOL utf, const compile_data *cd,
const pcre_uint32 *base_list, const pcre_uchar *base_end)
const pcre_uint32 *base_list, const pcre_uchar *base_end, int *rec_limit)
{
pcre_uchar c;
pcre_uint32 list[8];
@ -3082,6 +3116,9 @@ pcre_uint32 chr;
BOOL accepted, invert_bits;
BOOL entered_a_group = FALSE;
if (*rec_limit == 0) return FALSE;
--(*rec_limit);
/* Note: the base_list[1] contains whether the current opcode has greedy
(represented by a non-zero value) quantifier. This is a different from
other character type lists, which stores here that the character iterator
@ -3152,7 +3189,8 @@ for(;;)
while (*next_code == OP_ALT)
{
if (!compare_opcodes(code, utf, cd, base_list, base_end)) return FALSE;
if (!compare_opcodes(code, utf, cd, base_list, base_end, rec_limit))
return FALSE;
code = next_code + 1 + LINK_SIZE;
next_code += GET(next_code, 1);
}
@ -3172,7 +3210,7 @@ for(;;)
/* The bracket content will be checked by the
OP_BRA/OP_CBRA case above. */
next_code += 1 + LINK_SIZE;
if (!compare_opcodes(next_code, utf, cd, base_list, base_end))
if (!compare_opcodes(next_code, utf, cd, base_list, base_end, rec_limit))
return FALSE;
code += PRIV(OP_lengths)[c];
@ -3605,11 +3643,20 @@ register pcre_uchar c;
const pcre_uchar *end;
pcre_uchar *repeat_opcode;
pcre_uint32 list[8];
int rec_limit;
for (;;)
{
c = *code;
/* When a pattern with bad UTF-8 encoding is compiled with NO_UTF_CHECK,
it may compile without complaining, but may get into a loop here if the code
pointer points to a bad value. This is, of course a documentated possibility,
when NO_UTF_CHECK is set, so it isn't a bug, but we can detect this case and
just give up on this optimization. */
if (c >= OP_TABLE_LENGTH) return;
if (c >= OP_STAR && c <= OP_TYPEPOSUPTO)
{
c -= get_repeat_base(c) - OP_STAR;
@ -3617,7 +3664,8 @@ for (;;)
get_chr_property_list(code, utf, cd->fcc, list) : NULL;
list[1] = c == OP_STAR || c == OP_PLUS || c == OP_QUERY || c == OP_UPTO;
if (end != NULL && compare_opcodes(end, utf, cd, list, end))
rec_limit = 1000;
if (end != NULL && compare_opcodes(end, utf, cd, list, end, &rec_limit))
{
switch(c)
{
@ -3673,7 +3721,8 @@ for (;;)
list[1] = (c & 1) == 0;
if (compare_opcodes(end, utf, cd, list, end))
rec_limit = 1000;
if (compare_opcodes(end, utf, cd, list, end, &rec_limit))
{
switch (c)
{
@ -3947,14 +3996,14 @@ Arguments:
adjust the amount by which the group is to be moved
utf TRUE in UTF-8 / UTF-16 / UTF-32 mode
cd contains pointers to tables etc.
save_hwm the hwm forward reference pointer at the start of the group
save_hwm_offset the hwm forward reference offset at the start of the group
Returns: nothing
*/
static void
adjust_recurse(pcre_uchar *group, int adjust, BOOL utf, compile_data *cd,
pcre_uchar *save_hwm)
size_t save_hwm_offset)
{
pcre_uchar *ptr = group;
@ -3966,7 +4015,8 @@ while ((ptr = (pcre_uchar *)find_recurse(ptr, utf)) != NULL)
/* See if this recursion is on the forward reference list. If so, adjust the
reference. */
for (hc = save_hwm; hc < cd->hwm; hc += LINK_SIZE)
for (hc = (pcre_uchar *)cd->start_workspace + save_hwm_offset; hc < cd->hwm;
hc += LINK_SIZE)
{
offset = (int)GET(hc, 0);
if (cd->start_code + offset == ptr + 1)
@ -4171,7 +4221,11 @@ if ((options & PCRE_CASELESS) != 0)
range. Otherwise, use a recursive call to add the additional range. */
else if (oc < start && od >= start - 1) start = oc; /* Extend downwards */
else if (od > end && oc <= end + 1) end = od; /* Extend upwards */
else if (od > end && oc <= end + 1)
{
end = od; /* Extend upwards */
if (end > classbits_end) classbits_end = (end <= 0xff ? end : 0xff);
}
else n8 += add_to_class(classbits, uchardptr, options, cd, oc, od);
}
}
@ -4411,7 +4465,7 @@ const pcre_uchar *tempptr;
const pcre_uchar *nestptr = NULL;
pcre_uchar *previous = NULL;
pcre_uchar *previous_callout = NULL;
pcre_uchar *save_hwm = NULL;
size_t save_hwm_offset = 0;
pcre_uint8 classbits[32];
/* We can fish out the UTF-8 setting once and for all into a BOOL, but we
@ -5470,6 +5524,12 @@ for (;; ptr++)
PUT(previous, 1, (int)(code - previous));
break; /* End of class handling */
}
/* Even though any XCLASS list is now discarded, we must allow for
its memory. */
if (lengthptr != NULL)
*lengthptr += (int)(class_uchardata - class_uchardata_base);
#endif
/* If there are no characters > 255, or they are all to be included or
@ -5870,6 +5930,7 @@ for (;; ptr++)
{
register int i;
int len = (int)(code - previous);
size_t base_hwm_offset = save_hwm_offset;
pcre_uchar *bralink = NULL;
pcre_uchar *brazeroptr = NULL;
@ -5924,7 +5985,7 @@ for (;; ptr++)
if (repeat_max <= 1) /* Covers 0, 1, and unlimited */
{
*code = OP_END;
adjust_recurse(previous, 1, utf, cd, save_hwm);
adjust_recurse(previous, 1, utf, cd, save_hwm_offset);
memmove(previous + 1, previous, IN_UCHARS(len));
code++;
if (repeat_max == 0)
@ -5948,7 +6009,7 @@ for (;; ptr++)
{
int offset;
*code = OP_END;
adjust_recurse(previous, 2 + LINK_SIZE, utf, cd, save_hwm);
adjust_recurse(previous, 2 + LINK_SIZE, utf, cd, save_hwm_offset);
memmove(previous + 2 + LINK_SIZE, previous, IN_UCHARS(len));
code += 2 + LINK_SIZE;
*previous++ = OP_BRAZERO + repeat_type;
@ -6011,26 +6072,25 @@ for (;; ptr++)
for (i = 1; i < repeat_min; i++)
{
pcre_uchar *hc;
pcre_uchar *this_hwm = cd->hwm;
size_t this_hwm_offset = cd->hwm - cd->start_workspace;
memcpy(code, previous, IN_UCHARS(len));
while (cd->hwm > cd->start_workspace + cd->workspace_size -
WORK_SIZE_SAFETY_MARGIN - (this_hwm - save_hwm))
WORK_SIZE_SAFETY_MARGIN -
(this_hwm_offset - base_hwm_offset))
{
size_t save_offset = save_hwm - cd->start_workspace;
size_t this_offset = this_hwm - cd->start_workspace;
*errorcodeptr = expand_workspace(cd);
if (*errorcodeptr != 0) goto FAILED;
save_hwm = (pcre_uchar *)cd->start_workspace + save_offset;
this_hwm = (pcre_uchar *)cd->start_workspace + this_offset;
}
for (hc = save_hwm; hc < this_hwm; hc += LINK_SIZE)
for (hc = (pcre_uchar *)cd->start_workspace + base_hwm_offset;
hc < (pcre_uchar *)cd->start_workspace + this_hwm_offset;
hc += LINK_SIZE)
{
PUT(cd->hwm, 0, GET(hc, 0) + len);
cd->hwm += LINK_SIZE;
}
save_hwm = this_hwm;
base_hwm_offset = this_hwm_offset;
code += len;
}
}
@ -6075,7 +6135,7 @@ for (;; ptr++)
else for (i = repeat_max - 1; i >= 0; i--)
{
pcre_uchar *hc;
pcre_uchar *this_hwm = cd->hwm;
size_t this_hwm_offset = cd->hwm - cd->start_workspace;
*code++ = OP_BRAZERO + repeat_type;
@ -6097,22 +6157,21 @@ for (;; ptr++)
copying them. */
while (cd->hwm > cd->start_workspace + cd->workspace_size -
WORK_SIZE_SAFETY_MARGIN - (this_hwm - save_hwm))
WORK_SIZE_SAFETY_MARGIN -
(this_hwm_offset - base_hwm_offset))
{
size_t save_offset = save_hwm - cd->start_workspace;
size_t this_offset = this_hwm - cd->start_workspace;
*errorcodeptr = expand_workspace(cd);
if (*errorcodeptr != 0) goto FAILED;
save_hwm = (pcre_uchar *)cd->start_workspace + save_offset;
this_hwm = (pcre_uchar *)cd->start_workspace + this_offset;
}
for (hc = save_hwm; hc < this_hwm; hc += LINK_SIZE)
for (hc = (pcre_uchar *)cd->start_workspace + base_hwm_offset;
hc < (pcre_uchar *)cd->start_workspace + this_hwm_offset;
hc += LINK_SIZE)
{
PUT(cd->hwm, 0, GET(hc, 0) + len + ((i != 0)? 2+LINK_SIZE : 1));
cd->hwm += LINK_SIZE;
}
save_hwm = this_hwm;
base_hwm_offset = this_hwm_offset;
code += len;
}
@ -6208,7 +6267,7 @@ for (;; ptr++)
{
int nlen = (int)(code - bracode);
*code = OP_END;
adjust_recurse(bracode, 1 + LINK_SIZE, utf, cd, save_hwm);
adjust_recurse(bracode, 1 + LINK_SIZE, utf, cd, save_hwm_offset);
memmove(bracode + 1 + LINK_SIZE, bracode, IN_UCHARS(nlen));
code += 1 + LINK_SIZE;
nlen += 1 + LINK_SIZE;
@ -6342,7 +6401,7 @@ for (;; ptr++)
else
{
*code = OP_END;
adjust_recurse(tempcode, 1 + LINK_SIZE, utf, cd, save_hwm);
adjust_recurse(tempcode, 1 + LINK_SIZE, utf, cd, save_hwm_offset);
memmove(tempcode + 1 + LINK_SIZE, tempcode, IN_UCHARS(len));
code += 1 + LINK_SIZE;
len += 1 + LINK_SIZE;
@ -6391,7 +6450,7 @@ for (;; ptr++)
default:
*code = OP_END;
adjust_recurse(tempcode, 1 + LINK_SIZE, utf, cd, save_hwm);
adjust_recurse(tempcode, 1 + LINK_SIZE, utf, cd, save_hwm_offset);
memmove(tempcode + 1 + LINK_SIZE, tempcode, IN_UCHARS(len));
code += 1 + LINK_SIZE;
len += 1 + LINK_SIZE;
@ -6420,15 +6479,25 @@ for (;; ptr++)
parenthesis forms. */
case CHAR_LEFT_PARENTHESIS:
newoptions = options;
skipbytes = 0;
bravalue = OP_CBRA;
save_hwm = cd->hwm;
reset_bracount = FALSE;
/* First deal with various "verbs" that can be introduced by '*'. */
ptr++;
/* First deal with comments. Putting this code right at the start ensures
that comments have no bad side effects. */
if (ptr[0] == CHAR_QUESTION_MARK && ptr[1] == CHAR_NUMBER_SIGN)
{
ptr += 2;
while (*ptr != CHAR_NULL && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;
if (*ptr == CHAR_NULL)
{
*errorcodeptr = ERR18;
goto FAILED;
}
continue;
}
/* Now deal with various "verbs" that can be introduced by '*'. */
if (ptr[0] == CHAR_ASTERISK && (ptr[1] == ':'
|| (MAX_255(ptr[1]) && ((cd->ctypes[ptr[1]] & ctype_letter) != 0))))
{
@ -6549,10 +6618,18 @@ for (;; ptr++)
goto FAILED;
}
/* Initialize for "real" parentheses */
newoptions = options;
skipbytes = 0;
bravalue = OP_CBRA;
save_hwm_offset = cd->hwm - cd->start_workspace;
reset_bracount = FALSE;
/* Deal with the extended parentheses; all are introduced by '?', and the
appearance of any of them means that this is not a capturing group. */
else if (*ptr == CHAR_QUESTION_MARK)
if (*ptr == CHAR_QUESTION_MARK)
{
int i, set, unset, namelen;
int *optset;
@ -6561,17 +6638,6 @@ for (;; ptr++)
switch (*(++ptr))
{
case CHAR_NUMBER_SIGN: /* Comment; skip to ket */
ptr++;
while (*ptr != CHAR_NULL && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;
if (*ptr == CHAR_NULL)
{
*errorcodeptr = ERR18;
goto FAILED;
}
continue;
/* ------------------------------------------------------------ */
case CHAR_VERTICAL_LINE: /* Reset capture count for each branch */
reset_bracount = TRUE;
@ -6620,8 +6686,13 @@ for (;; ptr++)
if (tempptr[1] == CHAR_QUESTION_MARK &&
(tempptr[2] == CHAR_EQUALS_SIGN ||
tempptr[2] == CHAR_EXCLAMATION_MARK ||
tempptr[2] == CHAR_LESS_THAN_SIGN))
(tempptr[2] == CHAR_LESS_THAN_SIGN &&
(tempptr[3] == CHAR_EQUALS_SIGN ||
tempptr[3] == CHAR_EXCLAMATION_MARK))))
{
cd->iscondassert = TRUE;
break;
}
/* Other conditions use OP_CREF/OP_DNCREF/OP_RREF/OP_DNRREF, and all
need to skip at least 1+IMM2_SIZE bytes at the start of the group. */
@ -6698,8 +6769,7 @@ for (;; ptr++)
ptr++;
}
namelen = (int)(ptr - name);
if (lengthptr != NULL && (options & PCRE_DUPNAMES) != 0)
*lengthptr += IMM2_SIZE;
if (lengthptr != NULL) *lengthptr += IMM2_SIZE;
}
/* Check the terminator */
@ -6735,6 +6805,7 @@ for (;; ptr++)
goto FAILED;
}
PUT2(code, 2+LINK_SIZE, recno);
if (recno > cd->top_backref) cd->top_backref = recno;
break;
}
@ -6757,6 +6828,7 @@ for (;; ptr++)
int offset = i++;
int count = 1;
recno = GET2(slot, 0); /* Number from first found */
if (recno > cd->top_backref) cd->top_backref = recno;
for (; i < cd->names_found; i++)
{
slot += cd->name_entry_size;
@ -7114,11 +7186,11 @@ for (;; ptr++)
if (!is_recurse) cd->namedrefcount++;
/* If duplicate names are permitted, we have to allow for a named
reference to a duplicated name (this cannot be determined until the
second pass). This needs an extra 16-bit data item. */
/* We have to allow for a named reference to a duplicated name (this
cannot be determined until the second pass). This needs an extra
16-bit data item. */
if ((options & PCRE_DUPNAMES) != 0) *lengthptr += IMM2_SIZE;
*lengthptr += IMM2_SIZE;
}
/* In the real compile, search the name table. We check the name
@ -7475,12 +7547,22 @@ for (;; ptr++)
goto FAILED;
}
/* Assertions used not to be repeatable, but this was changed for Perl
compatibility, so all kinds can now be repeated. We copy code into a
/* All assertions used not to be repeatable, but this was changed for Perl
compatibility. All kinds can now be repeated except for assertions that are
conditions (Perl also forbids these to be repeated). We copy code into a
non-register variable (tempcode) in order to be able to pass its address
because some compilers complain otherwise. */
because some compilers complain otherwise. At the start of a conditional
group whose condition is an assertion, cd->iscondassert is set. We unset it
here so as to allow assertions later in the group to be quantified. */
if (bravalue >= OP_ASSERT && bravalue <= OP_ASSERTBACK_NOT &&
cd->iscondassert)
{
previous = NULL;
cd->iscondassert = FALSE;
}
else previous = code;
previous = code; /* For handling repetition */
*code = bravalue;
tempcode = code;
tempreqvary = cd->req_varyopt; /* Save value before bracket */
@ -7727,7 +7809,7 @@ for (;; ptr++)
const pcre_uchar *p;
pcre_uint32 cf;
save_hwm = cd->hwm; /* Normally this is set when '(' is read */
save_hwm_offset = cd->hwm - cd->start_workspace; /* Normally this is set when '(' is read */
terminator = (*(++ptr) == CHAR_LESS_THAN_SIGN)?
CHAR_GREATER_THAN_SIGN : CHAR_APOSTROPHE;
@ -8054,6 +8136,7 @@ int length;
unsigned int orig_bracount;
unsigned int max_bracount;
branch_chain bc;
size_t save_hwm_offset;
/* If set, call the external function that checks for stack availability. */
@ -8071,6 +8154,8 @@ bc.current_branch = code;
firstchar = reqchar = 0;
firstcharflags = reqcharflags = REQ_UNSET;
save_hwm_offset = cd->hwm - cd->start_workspace;
/* Accumulate the length for use in the pre-compile phase. Start with the
length of the BRA and KET and any extra bytes that are required at the
beginning. We accumulate in a local variable to save frequent testing of
@ -8212,7 +8297,7 @@ for (;;)
int fixed_length;
*code = OP_END;
fixed_length = find_fixedlength(last_branch, (options & PCRE_UTF8) != 0,
FALSE, cd);
FALSE, cd, NULL);
DPRINTF(("fixed length = %d\n", fixed_length));
if (fixed_length == -3)
{
@ -8273,7 +8358,7 @@ for (;;)
{
*code = OP_END;
adjust_recurse(start_bracket, 1 + LINK_SIZE,
(options & PCRE_UTF8) != 0, cd, cd->hwm);
(options & PCRE_UTF8) != 0, cd, save_hwm_offset);
memmove(start_bracket + 1 + LINK_SIZE, start_bracket,
IN_UCHARS(code - start_bracket));
*start_bracket = OP_ONCE;
@ -8497,6 +8582,7 @@ do {
case OP_RREF:
case OP_DNRREF:
case OP_DEF:
case OP_FAIL:
return FALSE;
default: /* Assertion */
@ -9081,6 +9167,7 @@ cd->dupnames = FALSE;
cd->namedrefcount = 0;
cd->start_code = cworkspace;
cd->hwm = cworkspace;
cd->iscondassert = FALSE;
cd->start_workspace = cworkspace;
cd->workspace_size = COMPILE_WORK_SIZE;
cd->named_groups = named_groups;
@ -9118,13 +9205,6 @@ if (length > MAX_PATTERN_SIZE)
goto PCRE_EARLY_ERROR_RETURN;
}
/* If there are groups with duplicate names and there are also references by
name, we must allow for the possibility of named references to duplicated
groups. These require an extra data item each. */
if (cd->dupnames && cd->namedrefcount > 0)
length += cd->namedrefcount * IMM2_SIZE * sizeof(pcre_uchar);
/* Compute the size of the data block for storing the compiled pattern. Integer
overflow should no longer be possible because nowadays we limit the maximum
value of cd->names_found and cd->name_entry_size. */
@ -9183,6 +9263,7 @@ cd->name_table = (pcre_uchar *)re + re->name_table_offset;
codestart = cd->name_table + re->name_entry_size * re->name_count;
cd->start_code = codestart;
cd->hwm = (pcre_uchar *)(cd->start_workspace);
cd->iscondassert = FALSE;
cd->req_varyopt = 0;
cd->had_accept = FALSE;
cd->had_pruneorskip = FALSE;
@ -9319,7 +9400,7 @@ if (cd->check_lookbehind)
int end_op = *be;
*be = OP_END;
fixed_length = find_fixedlength(cc, (re->options & PCRE_UTF8) != 0, TRUE,
cd);
cd, NULL);
*be = end_op;
DPRINTF(("fixed length = %d\n", fixed_length));
if (fixed_length < 0)