[Boost-users] boost::regex locale problem

From: boost_at_[hidden]
Date: 2006-10-08 21:01:21

Hi, I'm having a lot of trouble with boost::regexp and locales, even trying to change it makes the  program fail.

Can anybody help?

#include <iostream>
#include <string>
#include <cstdlib>
#include <cassert>
#include <vector>
#include <stdexcept>
#include <locale>

#include <boost/regex.hpp>
using namespace std;
using namespace boost;
int main(int argc, char *argv[]) {
        string regexp, text;
        if( argc != 3 ) {
                exit(EXIT_FAILURE);
        } else {
                regexp = argv[1];
                text = argv[2];
        }
        cout << "regexp: " << regexp << endl;
        cout << "text: " << text << endl;
        regex re(regexp,regex_constants::perl);
        re.imbue(locale("es_ES.UTF-8"));
        smatch match;
        if(regex_match(text, match, re)) {
                cout << "MATCH" << endl;
                for(smatch::const_iterator i = match.begin(); i != match.end(); ++i) {
                        cout << i->str() << endl;
                }

        } else {
                cout << "NO match" << endl;
        }

}
./testre '\w' "é"

Program terminated with signal 8, Arithmetic exception.
#0  0xb7ea0883 in boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::construct_init ()
   from /usr/lib/libboost_regex-gcc-mt-1_33_1.so.1.33.1
(gdb) bt
#0  0xb7ea0883 in boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::construct_init ()
   from /usr/lib/libboost_regex-gcc-mt-1_33_1.so.1.33.1
#1  0x08049ea9 in perl_matcher (this=0xbf806c24, first={_M_current = 0x804c02c "é"}, end=
      {_M_current = 0x804c02d ""}, what=@0xbf806d20, e=@0xbf806d3c,
    f=boost::regex_constants::match_default, b={_M_current = 0x804c02c "é"})
    at /usr/include/boost/regex/v4/perl_matcher_common.hpp:44
#2  0x08049f27 in boost::regex_match<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > (first=
      {_M_current = 0x804c02c "é"}, last={_M_current = 0x804c02d ""}, m=@0xbf806d20,
    e=@0xbf806d3c, flags=boost::regex_constants::match_default)
    at /usr/include/boost/regex/v4/regex_match.hpp:42
#3  0x08049fd3 in boost::regex_match<std::char_traits<char>, std::allocator<char>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > (s=@0xbf806d44, m=@0xbf806d20, e=@0xbf806d3c,
    flags=boost::regex_constants::match_default)
    at /usr/include/boost/regex/v4/regex_match.hpp:75
#4  0x0804926b in main (argc=3, argv=0xbf806df4) at testre.cpp:25
-- 
Pedro Larroy Tovar, pedro at larroy dot com | http://pedro.larroy.com/
  * Las patentes de programación son nocivas para la innovación * 
               http://proinnova.hispalinux.es/