57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
#include <mbgl/platform/platform.hpp>
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#include <mbgl/util/utf.hpp>
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#define NU_WITH_TOUPPER
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#define NU_WITH_TOLOWER
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#define NU_WITH_UTF8_WRITER
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#include <libnu/libnu.h>
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#include <cstring>
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namespace mbgl {
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namespace platform {
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std::string uppercase(const std::string& str)
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{
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boost::u8_to_u32_iterator<std::string::const_iterator> itr(str.begin());
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boost::u8_to_u32_iterator<std::string::const_iterator> end(str.end());
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std::string output;
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char buf[5];
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for (; itr!=end; ++itr)
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{
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char const* up = nu_toupper(*itr);
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if (up != 0) output.append(up);
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else
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{
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std::memset(buf, 0, 5);
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nu_utf8_write(*itr, buf);
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output.append(buf);
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}
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}
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return output;
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}
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std::string lowercase(const std::string& str)
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{
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std::string output;
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char lo[5];
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char const* itr = str.c_str();
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char const* end = itr + str.length();
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char const* buf = 0;
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uint32_t code_point;
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for ( ; itr!=end;)
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{
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itr = _nu_tolower(itr, end, nu_utf8_read, &code_point, &buf, 0);
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if (buf != 0) output.append(buf);
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else
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{
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std::memset(lo, 0, 5);
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nu_utf8_write(code_point, lo);
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output.append(lo);
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}
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}
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return output;
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}
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}
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}
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