Re: [Boost-users] boost::regex on to match in the middle of a string

Subject: Re: [Boost-users] boost::regex on to match in the middle of a string
From: Eric Niebler (eric_at_[hidden])
Date: 2010-03-11 23:27:57

On 3/12/2010 4:54 AM, Conoscenza Silente wrote:
> Hi All
> I am newbie to boost::regex.
> I have a string including multiple new lines characters in it like the
> one below.
>
> "this is a big string\nthat I would like\ntoParse here:
> WORD_TO_FIND=Ciao\nin the middle"
>
> I tried the following regex but it doesn't match.
>
> boost::regex ln0("WORD_TO_FIND=\t(?<SYMBOL>\\w+).+", boost::regex::perl );
>
> Do you know what is the option and how to set it up
> to enable the matching for an entire string and not line by line?
> Thanks

Are you using the regex_match algorithm? That only succeeds if the 
pattern matches the whole input. You should be using regex_search.

Also, which version of Boost are you using? I think Boost.Regex only got 
support for named captures very recently. John can correct me if I'm wrong.

-- 
Eric Niebler
BoostPro Computing
http://www.boostpro.com