Hello John, Thanks, it generates match correctly after using [re.assign(sre,boost::regex_constants::perl | boost::regex_constants::icase);] I am using BOOST_LIB_VERSION "1_32" which comes with RHEL 4 (linux ) installation. Could you help me to know, where I can get the document stating differences between boost version 1.34 & 1.32 for regex library. I need to decide whether to shift to 1.34 boost version is a must for me. Thanks & Regards, Chandan --- John Maddock <john@johnmaddock.co.uk> wrote:
Thank you John for your prompt reply. I tried the same example by replacing [:xdigit:] with [[:xdigit:]] in the expression However, I still do not get
Chandan Nilange wrote: the desired match.
Works for me with 1.34, I see:
Found Pattern:start:1PAGE1ERROR1:end: Pattern starts at :31 Pattern ends at: 42 Pattern length:12
as output.
For some older Boost versions though you may need to use:
re.assign(sre, boost::regex_constants::perl | boost::regex_constants::icase);
Otherwise the expression is interpreted as a POSIX-Basic regex which isn't what you want.
John.
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