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//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_LOCALE_IMPL_UTIL_TIMEZONE_HPP
#define BOOST_LOCALE_IMPL_UTIL_TIMEZONE_HPP
#include <string>
#include <stdlib.h>
#include <string.h>
namespace boost {
namespace locale {
namespace util {
inline int parse_tz(std::string const &tz)
{
int gmtoff = 0;
std::string ltz;
for(unsigned i=0;i<tz.size();i++) {
if('a' <= tz[i] && tz[i] <= 'z')
ltz += tz[i]-'a' + 'A';
else if(tz[i]==' ')
;
else
ltz+=tz[i];
}
if(ltz.compare(0,3,"GMT")!=0 && ltz.compare(0,3,"UTC")!=0)
return 0;
if(ltz.size()<=3)
return 0;
char const *begin = ltz.c_str()+3;
char *end=0;
int hours = strtol(begin,&end,10);
if(end != begin) {
gmtoff+=hours * 3600;
}
if(*end==':') {
begin=end+1;
int minutes = strtol(begin,&end,10);
if(end!=begin)
gmtoff+=minutes * 60;
}
return gmtoff;
}
} // util
} // locale
} //boost
#endif
// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
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