No, I don't see this example, I was reading the documentation and example about regex iterator and not regex token iterator. I search on other website but don't find this example. I will study it. Thanks John for always anwsering, and always fast answering. I was completly discouraged. Thanks again! ----- Message d'origine ---- De : John Maddock À : boost-users@lists.boost.org Envoyé le : Lundi, 26 Novembre 2007, 17h50mn 31s Objet : Re: [Boost-users] extract url with boost::regex hallouina-ml@yahoo.fr wrote:

Hello;

I try to extract an url from a webpage and it's almostly done but completly unoptimised :

Before I try with a regex iterator. But I don't understand the documentation.

:-( Did you see this example:http://www.boost.org/libs/regex/example/snippets/regex_token_iterator_eg_2.c... It does exactly what you want - it exacts all the URL's from a HTML file.

boost::regex rexp(".*(http:\\/\\/.+)\"*.*");

and I get this result :

http://www.nolife-tv.com/" http://www.nolife-tv.com"> http://www.nolife-tv.com/images/stories/noiz/1.jpg"

http://www.nolife-tv.com/component/option,com_poll/task,results/id,16/Itemid...';"

http://www.joomla.org" http://www.google-analytics.com/urchin.js" http://www.omniture.com

and so on...

I will cut and get only the url without the " or ' why this regex get the " with it? I put the close bracket before the " so why? I already try to do \\" rather than \"

Because the .* on the end of the expression will match whatever text follows the ", the grouping construct (...) spits out a *sub-expression* which you can access via the match_results::operator[] or match_results::str(i) methods. HTH, John. [...] _____________________________________________________________________________ Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail