Re: [Boost-users] [Boost.StringAlgo] How to insert substr into str

From: Pavol Droba (droba_at_[hidden])
Date: 2008-06-06 03:29:09

Hi,

Valentine Rozental wrote:
> Dear All,
> 
> what is the elegant/right way to insert some substr into the given str?
> For example:
> 
> // -------------------------------------------------------
> ...
> std::string str("xyz_123_abc_xyyz_a1b");
> std::string mark("abc");
> std::string substr("$$$");
> 
> iterator_range<range_iterator<std::string>::type>
>         it1 = boost::find_first(str, mark);
> ...
> // -------------------------------------------------------
> 
> I want to insert substr ("$$$") after mark ("abc") if the mark exists
> in the str.
> That is, the result in the example above should be: "xyz_123_abc$$$_xyyz_a1b"
> 
> Thank you in advance!

If you are using std::string, why could simply type

if(it1)
{
        str.insert(it1.end()-1, mark);
}

Regards,
Pavol.