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MapLibreParticleLab/platform/default/string_stdlib.cpp

54 lines
1.3 KiB
C++

#include <mbgl/platform/platform.hpp>
#include <mbgl/util/utf.hpp>
#define NU_WITH_TOUPPER
#define NU_WITH_TOLOWER
#define NU_WITH_UTF8_WRITER
#include <libnu/libnu.h>
#include <cstring>
namespace mbgl {
namespace platform {
std::string uppercase(const std::string& str)
{
boost::u8_to_u32_iterator<std::string::const_iterator> itr(str.begin());
boost::u8_to_u32_iterator<std::string::const_iterator> end(str.end());
std::string output;
char buf[5];
for (; itr!=end; ++itr)
{
char const* up = nu_toupper(*itr);
if (up != 0) output.append(up);
else
{
std::memset(buf, 0, 5);
nu_utf8_write(*itr, buf);
output.append(buf);
}
}
return output;
}
std::string lowercase(const std::string& str)
{
boost::u8_to_u32_iterator<std::string::const_iterator> itr(str.begin());
boost::u8_to_u32_iterator<std::string::const_iterator> end(str.end());
std::string output;
char buf[5];
for (; itr!=end; ++itr)
{
char const* lo = nu_tolower(*itr);
if (lo != 0) output.append(lo);
else
{
std::memset(buf, 0, 5);
nu_utf8_write(*itr, buf);
output.append(buf);
}
}
return output;
}
}
}