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 and PCRE. I tested it on two
different machines with the following output:
Ubuntu 13.10 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 17:26:33 UTC 2013 i686
i686 i686 GNU/Linux
Poco 0x01030600 on Linux 3.11.0-13-generic @ i686
Poco match 1234567890 to pattern ^[0-9]{10} matches? no --> NOT CORRECT
Poco match 123456789 to pattern ^[0-9]{10} matches? no
Boost match 1234567890 to pattern ^[0-9]{10} matches? yes
Boost match 123456789 to pattern ^[0-9]{10} matches? no
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? yes --> NOT CORRECT
Ubuntu 12.04.3 LTS 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14
15:31:16 UTC 2013 i686 i686 i386 GNU/Linux
Poco 0x01030600 on Linux 3.8.0-29-generic @ i686
Poco match 1234567890 to pattern ^[0-9]{10} matches? yes --> OK
Poco match 123456789 to pattern ^[0-9]{10} matches? no
Boost match 1234567890 to pattern ^[0-9]{10} matches? yes
Boost match 123456789 to pattern ^[0-9]{10} matches? no
PCRE 8.12 2011-01-15
PCRE match 1234567890 to pattern ^[0-9]{10} matches? yes
PRCE match 123456789 to pattern ^[0-9]{10} matches? no --> OK
** Affects: pcre3 (Ubuntu)
Importance: Undecided
Status: New
** Affects: poco (Ubuntu)
Importance: Undecided
Status: New
** Tags: pcre poco regex
** Attachment added: "Proof-of-concept"
https://bugs.launchpad.net/bugs/1361610/+attachment/4187289/+files/regex.cc
** Also affects: poco (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1361610
Title:
libPCRE3 8.31 regex matching is not working
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