locale_name.cpp

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#define _RWSTD_LIB_SRC
 
#include <rw/_defs.h>
 
#include <new>
#include <string.h>
 
#include <loc/_facet.h>
#include <loc/_locale.h>
 
#include "locale_body.h"
 
#if 6 == _RWSTD_HP_aCC_MAJOR && _RWSTD_HP_aCC_MINOR <= 1600
   // silence bogus HP aCC 6.16/cadvise warning #20200-D:
   // Potential null pointer dereference
#  pragma diag_suppress 20200
#endif
 
 
_RWSTD_NAMESPACE (std) { 
 
string locale::name () const
{
    // native locale may or may not have a name, depending
    // on the values of the LC_XXX environment variables at
    // the time of the construction of the locale object
 
    _RWSTD_ASSERT (0 != _C_body);
    _RWSTD_ASSERT (0 != _C_body->_C_name);
 
    // 22.1.1, p8: unnamed locales return "*"
 
    // locales that are not managed (i.e., combined locales) are unnamed
    if (!_C_body->_C_is_managed (none))
        return "*";
 
    if (strchr (_C_body->_C_name, *_RWSTD_CAT_SEP)) {
        // compose a combined locale name out of the names of the
        // individual locales that each category in *this comes from
 
        string result;
 
        _RWSTD_SIZE_T i = 0;
 
        for (const char *catnm = _C_body->_C_name; *catnm; ) {
 
            const char *next = strchr (catnm, *_RWSTD_CAT_SEP);
            if (!next)
                next = catnm + strlen (catnm);
 
            _RWSTD_ASSERT (i != _RW::__rw_n_cats);
 
            if (   result.size ()
                ||   _RW::__rw_facet::_C_opts
                   & _RW::__rw_facet::_C_prepend_cat_sep)
                result += *_RWSTD_CAT_SEP;
 
            if (_RW::__rw_facet::_C_opts & _RW::__rw_facet::_C_use_cat_names) {
                // prepend category name only if necessary
                result += _RW::__rw_cats [i++].name;
                result += '=';
            }
 
            const size_t catlen = size_t (next - catnm);
            result.append (catnm, catlen);
 
            catnm = next + !!*next;
        }
 
        return result;
    }
 
    return _C_body->_C_name;
}
 
 
}   // namespace std