Re: [Boost-users] [tokenizer/string_algo] splitting after a sequence

From: Thore Karlsen (sid_at_[hidden])
Date: 2005-06-18 11:05:23

On Sat, 18 Jun 2005 16:19:10 +0200, Yuval Ronen <ronen_yuval_at_[hidden]>
wrote:

>Hi.
>
>I need to tokenize a string according to a delimiter sequence, rather 
>than the common "any-of-characters" algorithm. What I mean is that if 
>I'll use the sequence "ab" to split the string "1ab2ab3", I'll get { 
>"1", "2", "3" }, but if I'll use the same "ab" sequence to split a 
>slightly different "1ab2ba3" string, I'll get { "1", "2ba3" }.
>
>I've looked at the tokenizer lib and string_algo's split method, but 
>couldn't find any evidence that any of them already contain such a 
>feature. Is there such a thing in Boost?

You can use split iterators in string_algo:

string str = "1ab2ab3";
vector<string> results;

typedef boost::split_iterator<std::string::iterator>
   string_split_iterator;

for (string_split_iterator it = make_split_iterator(str, 
   first_finder("ab")); it != string_split_iterator();
   ++it)
{
   results.push_back(*it);
}

-- 
Be seeing you.