Also opened an issue at the pocoproject.
https://github.com/pocoproject/poco/issues/1284
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https://bugs.launchpad.net/bugs/1361610
Title:
libPCRE3 8.31 regex matching is not working
To
Arne,
Thank you for your quick reply but I don't think this solves my problem.
It only solves it for the proof-of-concept which I made to proof, the
bug in Poco regex functionality.
Our system does not even link against libPCRE but uses Poco. If I change
the proof-of-concept to a Poco only
Additional info; when I change the linking order of pcre and poco I got
a different output:
$ g++ regex.cc -lPocoFoundation -lpcre
$ ./a.out
Poco 0x01030600 on Linux 4.2.0-35-generic @ x86_64
Poco match 1234567890 to pattern ^[0-9]{10} matches? no
Poco match 123456789 to pattern ^[0-9]{10}
Arne, I compiled your code, got no warnings and got a different output!
Poco 0x01030600 on Linux 4.2.0-35-generic @ x86_64
Poco match 1234567890 to pattern ^[0-9]{10} matches? no
Poco match 123456789 to pattern ^[0-9]{10} matches? no
Boost match 1234567890 to pattern ^[0-9]{10} matches? yes
$ ./a.out
PCRE 8.31 2012-07-06
PCRE match 1234567890 to pattern ^[0-9]{10} matches? yes
PRCE match 123456789 to pattern ^[0-9]{10} matches? no
$ LD_PRELOAD=/usr/lib/libPocoFoundation.so ./a.out
PCRE 8.31 2012-07-06
PCRE match 1234567890 to pattern ^[0-9]{10} matches? yes
PRCE match 123456789
Public bug reported:
It looks like that libPCRE3 8.31 included in Ubuntu 13.10 does not
handle regex matching alright. This also affects the libPocoFoundation
RegularExpression classes.
I attached a proof-of-concept which tests a good and bad heystack string
to a regex pattern with Poco, Boost
