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Fix \Q...\E bug in (*VERB) name when PCRE2_ALT_VERBNAMES and PCRE2_AUTO_CALLOUT 

were both specified.
This commit is contained in:
Philip.Hazel 2016-11-27 16:14:33 +00:00
parent d3e36ba59e
commit 14f6b9fb03
4 changed files with 11 additions and 3 deletions
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6
ChangeLog
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@ -51,7 +51,8 @@ longer inserted before and after explicit callouts in the pattern.
Some bugs in the refactored code were subsequently fixed before release. Some bugs in the refactored code were subsequently fixed before release.
Several of them were related to the change from assuming a zero-terminated Several of them were related to the change from assuming a zero-terminated
pattern (which previously had required non-zero terminated strings to be pattern (which previously had required non-zero terminated strings to be
copied). copied). These bugs were never in released code, but are noted here for the
record, once the code was made available in the repository.
(a) An overall recursion such as (?0) inside a lookbehind assertion was not (a) An overall recursion such as (?0) inside a lookbehind assertion was not
being diagnosed as an error. being diagnosed as an error.
@ -98,6 +99,9 @@ copied).
(m) Quantifiers following (*VERB)s were not being diagnosed as errors. (m) Quantifiers following (*VERB)s were not being diagnosed as errors.
(n) The use of \Q...\E in a (*VERB) name when PCRE2_ALT_VERBNAMES and
PCRE2_AUTO_CALLOUT were both specified caused undetermined behaviour.
4. Back references are now permitted in lookbehind assertions when there are 4. Back references are now permitted in lookbehind assertions when there are
no duplicated group numbers (that is, (?| has not been used), and, if the no duplicated group numbers (that is, (?| has not been used), and, if the
reference is by name, there is only one group of that name. The referenced reference is by name, there is only one group of that name. The referenced

4
src/pcre2_compile.c
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@ -2312,7 +2312,7 @@ while (ptr < ptrend)
GETCHARINCTEST(c, ptr); GETCHARINCTEST(c, ptr);
/* Copy quoted literals until \E, allowing for the possibility of automatic /* Copy quoted literals until \E, allowing for the possibility of automatic
callouts. */ callouts, except when processing a (*VERB) "name". */
if (inescq) if (inescq)
{ {
@ -2323,7 +2323,7 @@ while (ptr < ptrend)
} }
else else
{ {
if (after_manual_callout-- <= 0) if (!inverbname && after_manual_callout-- <= 0)
parsed_pattern = manage_callouts(thisptr, &previous_callout, options, parsed_pattern = manage_callouts(thisptr, &previous_callout, options,
parsed_pattern, cb); parsed_pattern, cb);
PARSED_LITERAL(c, parsed_pattern); PARSED_LITERAL(c, parsed_pattern);

2
testdata/testinput2 vendored
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@ -4920,4 +4920,6 @@ a)"xI
/(*:ab)*/ /(*:ab)*/
%(*:(:(svvvvvvvvvv:]*[ Z!*;[]*[^[]*!^[+.+{{2,7}' _\\\\\\\\\\\\\)?.:.. *w////\\\Q\\\\\\\\\\\\\\\T\\\\\+/?/////'+\\\EEE?/////'+/*+/[^K]?]//(w)%never_backslash_c,alt_verbnames,auto_callout
# End of testinput2 # End of testinput2

2
testdata/testoutput2 vendored
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@ -15372,6 +15372,8 @@ Failed: error 128 at offset 2: assertion expected after (?( or (?(?C)
/(*:ab)*/ /(*:ab)*/
Failed: error 109 at offset 6: quantifier does not follow a repeatable item Failed: error 109 at offset 6: quantifier does not follow a repeatable item
%(*:(:(svvvvvvvvvv:]*[ Z!*;[]*[^[]*!^[+.+{{2,7}' _\\\\\\\\\\\\\)?.:.. *w////\\\Q\\\\\\\\\\\\\\\T\\\\\+/?/////'+\\\EEE?/////'+/*+/[^K]?]//(w)%never_backslash_c,alt_verbnames,auto_callout
# End of testinput2 # End of testinput2
Error -63: PCRE2_ERROR_BADDATA (unknown error number) Error -63: PCRE2_ERROR_BADDATA (unknown error number)
Error -62: bad serialized data Error -62: bad serialized data