Re: [Boost-users] string_algo and utf8 locales

From: Maik Beckmann (maikbeckmann_at_[hidden])
Date: 2006-08-03 05:24:55

Thank you for the hint. I will google for it and try get the
std-versions to work on utf8 or ucs4 (maybe I have to use ICU oder can
use glib(mm) ).

Regards, Maik

   

> Hi,
> 
> To be honest, I haven't tried to use string_algo with encodings
> that use variable number of bytes per character.
> All algorithms work in character-wise manner, so utf enconding
> might not work.
> 
> Internaly std::tolower(Ch, Loc) is used to do the conversion.
> Try to see if this function works for you. If it doesn't give
> the required results, algorithms in the string_algo will
> not work either.
> 
> Regards,
> Pavol.
> 
> Maik Beckmann wrote:
> > Hello list, this is my first post to you :)
> > 
> > I've got a problem with handling locales and string_algo. 
> > As an example I want so make this string
> >         "hää?"
> > uppercase (->"HÄÄ?") by using this piece of code:
> > 
> > <code>
> >         #include <iostream>
> >         #include <locale>
> >         #include <string>
> >         #include <boost/algorithm/string.hpp>
> >         
> >         
> >         using namespace std;
> >         using namespace boost;
> >         
> >         int main(int argc, char** argv) {
> >         
> >             string loc_name = "de_DE.utf8";
> >         
> >             string str("hää?");
> >             str = to_upper_copy(str,locale(loc_name.c_str()));
> >         
> >             // ...should give "HÄÄ?"
> >             cout << str << endl;
> >             // but prints "Hää?"
> >         
> >             return 0;
> >         }
> > </code>
> > 
> > As you see I'm trying to use locales, but it doesn't work. What is my
> > mistake??
> > 
> > Thanks in advance, Maik
> > 
> > PS:
> > - I'm using gentoo-linux with gcc-4.1.1
> > - My locales list:
> >         LANG=de_DE.utf8
> >         LC_CTYPE="de_DE.utf8"
> >         LC_NUMERIC="de_DE.utf8"
> >         LC_TIME="de_DE.utf8"
> >         LC_COLLATE="de_DE.utf8"
> >         LC_MONETARY="de_DE.utf8"
> >         LC_MESSAGES="de_DE.utf8"
> >         LC_PAPER="de_DE.utf8"
> >         LC_NAME="de_DE.utf8"
> >         LC_ADDRESS="de_DE.utf8"
> >         LC_TELEPHONE="de_DE.utf8"
> >         LC_MEASUREMENT="de_DE.utf8"
> >         LC_IDENTIFICATION="de_DE.utf8"
> >         LC_ALL=de_DE.utf8
> >         
> > 
> > _______________________________________________
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