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use nunicode for proper to_upper/to_lower string conversions

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artemp
2014-10-31 14:43:46 -04:00
parent 15cf30652c
commit ea2416c7cf
3 changed files with 68 additions and 28 deletions
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55
platform/default/string_stdlib.cpp
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@@ -1,24 +1,51 @@
#include <mbgl/platform/platform.hpp>
#include <locale>
#include <mbgl/util/utf.hpp>
#define NU_WITH_TOUPPER
#define NU_WITH_TOLOWER
#define NU_WITH_UTF8_WRITER
#include <libnu/libnu.h>
namespace mbgl {
namespace platform {
std::string uppercase(const std::string& string) {
// TODO: Use a proper Unicode Special Casing-aware algorithm.
const auto &convert = std::use_facet<std::ctype<char>>(std::locale());
std::string converted = string;
convert.toupper(&converted[0], &converted[0] + converted.size());
return converted;
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[4];
for (; itr!=end; ++itr)
{
char const* up = nu_toupper(*itr);
if (up != 0) output.append(up);
else
{
std::memset(buf, 0, 4);
nu_utf8_write(*itr, buf);
output.append(buf);
}
}
return output;
}
std::string lowercase(const std::string& string) {
// TODO: Use a proper Unicode Special Casing-aware algorithm.
const auto &convert = std::use_facet<std::ctype<char>>(std::locale());
std::string converted = string;
convert.tolower(&converted[0], &converted[0] + converted.size());
return converted;
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[4];
for (; itr!=end; ++itr)
{
char const* up = nu_tolower(*itr);
if (up != 0) output.append(up);
else
{
std::memset(buf, 0, 4);
nu_utf8_write(*itr, buf);
output.append(buf);
}
}
return output;
}
}