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char16_t formatting support

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This commit is contained in:
Jack Andersen
2017-01-23 21:40:09 -10:00
parent 80b2223e88
commit b8abd466dd
4 changed files with 56 additions and 1 deletions
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38
hecl/lib/WideStringConvert.cpp
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@@ -22,6 +22,24 @@ std::string WideToUTF8(const std::wstring& src)
return retval;
}
std::string Char16ToUTF8(const std::u16string& src)
{
std::string retval;
retval.reserve(src.length());
for (char16_t ch : src)
{
utf8proc_uint8_t mb[4];
utf8proc_ssize_t c = utf8proc_encode_char(utf8proc_int32_t(ch), mb);
if (c < 0)
{
LogModule.report(logvisor::Warning, "invalid UTF-8 character while encoding");
return retval;
}
retval.append(reinterpret_cast<char*>(mb), c);
}
return retval;
}
std::wstring UTF8ToWide(const std::string& src)
{
std::wstring retval;
@@ -42,4 +60,24 @@ std::wstring UTF8ToWide(const std::string& src)
return retval;
}
std::u16string UTF8ToChar16(const std::string& src)
{
std::u16string retval;
retval.reserve(src.length());
const utf8proc_uint8_t* buf = reinterpret_cast<const utf8proc_uint8_t*>(src.c_str());
while (*buf)
{
utf8proc_int32_t wc;
utf8proc_ssize_t len = utf8proc_iterate(buf, -1, &wc);
if (len < 0)
{
LogModule.report(logvisor::Warning, "invalid UTF-8 character while decoding");
return retval;
}
buf += len;
retval += char16_t(wc);
}
return retval;
}
}