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/* iconvConvert.cc
*/
#include "osl/misc/iconvConvert.h"
#include <cstdlib>
#include <cstring>
#ifndef _WIN32
#include <iconv.h>
struct osl::misc::IconvConvert::IconvCD
{
iconv_t cd;
IconvCD(const std::string& fromcode, const std::string& tocode)
{
cd = iconv_open(tocode.c_str(), fromcode.c_str());
}
~IconvCD()
{
iconv_close(cd);
}
};
std::string osl::misc::
IconvConvert::langToIconvCode(const std::string& lang)
{
if (lang.empty())
return "";
const bool euc_jp =
(lang.find("jp") != lang.npos || lang.find("JP") != lang.npos)
&& (lang.find("euc") != lang.npos || lang.find("EUC") != lang.npos);
if (euc_jp)
return "EUC-JP";
const bool shift_jis =
(lang.find("sjis") != lang.npos || lang.find("SJIS") != lang.npos);
if (shift_jis)
return "SHIFT_JIS";
const bool utf8 =
(lang.find("UTF-8") != lang.npos || lang.find("UTF8") != lang.npos);
if (utf8)
return "UTF-8";
return "";
}
std::string osl::misc::
IconvConvert::eucToLang(const std::string& src)
{
static const char *lang = getenv("LANG");
if (! lang)
return "";
static const std::string tocode = langToIconvCode(lang);
if (tocode.empty())
return "";
if ("EUC-JP" == tocode)
return src;
IconvCD cd("EUC-JP", tocode);
return convert(cd, src);
}
std::string osl::misc::
IconvConvert::convert(const std::string& fromcode,
const std::string& tocode,
const std::string& src)
{
if (fromcode == tocode)
return src;
IconvCD cd(fromcode, tocode);
return convert(cd, src);
}
std::string osl::misc::
IconvConvert::convert(IconvCD& cd, const std::string& src)
{
const char * inbuf = src.c_str();
char outbuf[1024], *outbufptr = outbuf;
size_t inbytesleft = src.size(), outbytesleft = 1024;
#if (defined __linux__ || defined __APPLE__)
typedef char ** iconv_inbuf_t;
#else
typedef const char ** iconv_inbuf_t;
#endif
std::string ret;
int success;
while ((success = iconv(cd.cd, (iconv_inbuf_t)&inbuf, &inbytesleft,
&outbufptr, &outbytesleft)) >= 0
&& inbytesleft > 0)
if (outbufptr - outbuf >= 512)
{
ret += std::string(outbuf, outbufptr);
outbufptr = outbuf;
}
if (success == -1)
return "";
ret += std::string(outbuf, outbufptr);
return ret;
}
#endif /* _WIN32 */
// ;;; Local Variables:
// ;;; mode:c++
// ;;; c-basic-offset:2
// ;;; End:
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