Re: [Boost-users] [Regex] Replace algorithm

From: Setzer, Sebastian (ext) (sebastian.setzer.ext_at_[hidden])
Date: 2006-05-22 08:14:24

Hi,
You should probably use iterators like in regex_iterator_example.cpp and
prefix()/suffix() to output the text in between.

Sebastian

> Hi,
> 
> I'd like to replace all parts of a string with the results of 
> calling a 
> function, passing the match as a parameter. Some pseudo-code:
> 
> ---
> std::string replacer(smatch& s)
> {
>     return std::getenv(s[1].c_str());
> }
> 
> std::string const input = "This is ${USER} on ${HOST}";
> boost::regex const re("\\$\\{([^\\}]+)\\}");
> std::string result = boost::regex_replace(input, re, 
> boost::bind(&replacer));
> 
> assert("This is Me on MyWorkstation" == result);
> ---
> 
> (I'm sure there are errors above, but I hope you get the 
> general idea).
> 
> Any easy way to do something similar?
> 
> // Johan
> 
> 
> 
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>