Re: [Boost-users] Regular Expression

Subject: Re: [Boost-users] Regular Expression
From: John Maddock (john_at_[hidden])
Date: 2009-07-13 12:47:16

> Hello to all, i want to search a container which copied from file with
> certain regular expression and then display it to stdout;
>
> Here is my code:
>
> [code]
>
> std::cout << "\n\nEnter Search designation : ";
> std::string userDesignation;
> getline(std::cin, userDesignation);
>
> std::ifstream inHandle("C:\\Staff.txt");
>  std::vector<std::string> data;
> data.reserve(100);
> std::copy(std::istream_iterator<std::string>(inHandle),
>       std::istream_iterator<std::string>(),
>         std::back_inserter(data) );
>
> boost::regex searchExpression(userDesignation);
> boost::match_results<std::vector<std::string>::iterator > result;
>
> boost::regex_match(data.begin(), data.end(), result, searchExpression);
>
> [/code]
>
> The error is
>
>  error C2664: 'char boost::w32_regex_traits<charT>::translate(charT,bool)
> const' : cannot convert parameter 1 from
> 'std::basic_string<_Elem,_Traits,_Ax>' to 'char'
>
> error C2664: 'char boost::w32_regex_traits<charT>::translate(charT,bool)
> const' : cannot convert parameter 1 from
> 'std::basic_string<_Elem,_Traits,_Ax>' to 'char'
>
> I think the error cause by vector string iterator rather than string
> iterator.
>
> Any workaround solution to this problem ?

In your code you are trying to treat a string as the character type, which 
is not supported, and I'm fairly sure not what you wanted to do, did you 
mean to use a vector<char> ?

HTH, John.