Re: [boost] [regex and string algo] again strange split behaviour

From: Pavol Droba (droba_at_[hidden])
Date: 2005-07-13 12:28:23

Hi,

This is an interesting observation. So it seems reasonable to drop
back to 1.32 version.

Ideas?

Regards,

Pavol

On Wed, Jul 13, 2005 at 04:42:06PM +0200, Jan Hermelink wrote:
> The 1.32 behaviour is compatible with Boost.Regex:
> 
> boost::regex_token_iterator in splitting mode returns for 
> 
> "abc/abc/"      -> 2 tokens
> 
> This is compatible with the regex standardization proposal.
> 
> I think the behaviour of boost::split should be the same.
> 
> Regards,
> 
> 	Jan
> 
> -----Original Message-----
> From: boost-bounces_at_[hidden]
> [mailto:boost-bounces_at_[hidden]] On Behalf Of Stefan Slapeta
> Posted At: Wednesday, July 13, 2005 3:13 PM
> Posted To: Boost Developer
> Conversation: [boost] [string algo] again strange split behaviour
> Subject: [boost] [string algo] again strange split behaviour
> 
> 
> hi,
> 
> I assume the behaviour of boost::split not to return the last token has 
> been changed (in CVS). However, a side effect seems to be that there is 
> also one token returned for _empty_ strings, which is very questionable
> IMO!
> 
> summary (if '/' is the separator):
> 
> boost 1.32:
> ""              -> 0 tokens
> "abc/abc"       -> 2 tokens
> "abc/abc/"      -> 2 tokens
> 
> CVS:
> ""              -> 1 token (!)
> "abc/abc"       -> 2 tokens
> "abc/abc/"      -> 3 tokens
> 
> should be IMO:
> ""              -> 0 tokens
> "abc/abc"       -> 2 tokens
> "abc/abc/"      -> 3 tokens
> 
> 
> Thoughts?
> 
> 
> Stefan
> 
> _______________________________________________
> Unsubscribe & other changes:
> http://lists.boost.org/mailman/listinfo.cgi/boost
> 
> _______________________________________________
> Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost