Sha256: 9cd0a89419a301708658d71155027e6a4f5b6d73eaa64982307704374a2524b0
Contents?: true
Size: 1.71 KB
Versions: 43
Compression:
Stored size: 1.71 KB
Contents
#pragma once
#include <Gosu/Platform.hpp>
#include <iconv.h>
#include <errno.h>
namespace Gosu
{
template<typename Out, const char* to, const char* from, typename In>
Out iconvert(const In& in)
{
if (in.empty()) return Out();
const size_t buffer_len = 128;
typedef typename In::value_type InElem;
typedef typename Out::value_type OutElem;
static iconv_t cd = iconv_open(to, from);
Out result;
OutElem buffer[buffer_len];
char* inbuf = const_cast<char*>(reinterpret_cast<const char*>(&in[0]));
size_t inbytesleft = in.size() * sizeof(InElem);
char* outbuf = reinterpret_cast<char*>(buffer);
size_t outbytesleft = sizeof buffer;
for (;;) {
size_t ret = ::iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
if (ret == static_cast<size_t>(-1) && errno == EILSEQ) {
// Skip illegal sequence part, repeat loop.
// TODO: Or retry w/ different encoding?
++inbuf;
--inbytesleft;
}
else if (ret == static_cast<size_t>(-1) && errno == E2BIG) {
// Append new characters, reset out buffer, then repeat loop.
result.insert(result.end(), buffer, buffer + buffer_len);
outbuf = reinterpret_cast<char*>(buffer);
outbytesleft = sizeof buffer;
}
else {
// Append what's new in the buffer, then LEAVE loop.
result.insert(result.end(), buffer,
buffer + buffer_len - outbytesleft / sizeof(OutElem));
return result;
}
}
}
}
Version data entries
43 entries across 43 versions & 1 rubygems