Re: [Boost-users] How do I use regex to match two consecutive newlines?

From: Tommy Li (tommycli_at_[hidden])
Date: 2006-08-03 02:21:27

Tommy Li wrote:
> I've tried matching like this:
> 
> 	std::string input = filecontents;
> 	boost::regex re_paragraphs("\\n\\n");
> 	
> 	boost::sregex_token_iterator input_token_it(input.begin(), input.end(), 
> re_paragraphs, -1);
> 	boost::sregex_token_iterator end_token_it;
> 	
> 	for( ; input_token_it != end_token_it; input_token_it++ )
> 	{
> 		output += "TOKEN FOUND"
> 	}
> 	return output;
> 
> But this never works. It matches when I use a part of a word as a token. 
> The problem is that it's just not matching the newlines. I've looked 
> into the input's hex and there are indeed two newline chars consecutively.
> 
> I think I'm missing something obvious. Anyone have any idea?

By the way, I can't even match one newline char with "\\n" though they 
are obviously there.