GoogleTron/Iconv/Iso88591ToUtf8.cpp

// Iconv ISO-8859-1 To UTF-8
//
// Douglas Thrift
//
// $Id$

#include <cxx/standard.hh>

#include <hop/function.hpp>

#include <iconv.h>

#include "Iso88591ToUtf8.hpp"

namespace
{

template <typename Char>
static _finline size_t Iconv_(::iconv_t conversion, const char **inBytes, size_t *inBytesLeft, char **outBytes, size_t *outBytesLeft, size_t (*)(::iconv_t, Char **, size_t *, char **, size_t *))
{
        return ::iconv(conversion, const_cast<Char **>(inBytes), inBytesLeft, outBytes, outBytesLeft);
}

#define Iconv_(conversion, inBytes, inBytesLeft, outBytes, outBytesLeft) Iconv_(conversion, inBytes, inBytesLeft, outBytes, outBytesLeft, &::iconv)

}

namespace Iconv
{

cse::String Iso88591ToUtf8(const ext::Buffer &iso88591)
{
        ::iconv_t conversion(reinterpret_cast<void *>(api::Posix::CheckError(reinterpret_cast<int>(::iconv_open("UTF-8", "ISO-8859-1")))));
        ext::Buffer utf8(iso88591.GetSize());
        const char *iso88591Bytes(iso88591.Begin());
        char *utf8Bytes(utf8.Begin());
        size_t code, iso88591BytesLeft(iso88591.GetSize()), utf8BytesLeft(utf8.GetSize());

        while ((code = Iconv_(conversion, &iso88591Bytes, &iso88591BytesLeft, &utf8Bytes, &utf8BytesLeft)) == size_t(-1))
                if (errno != E2BIG)
                        api::Posix::CheckError(code);
                else
                {
                        utf8.SetSize(utf8.GetSize() + (utf8BytesLeft += iso88591BytesLeft));

                        utf8Bytes = utf8.End() - utf8BytesLeft;
                }

        api::Posix::CheckError(::iconv_close(conversion));

        return utf8;
}

}
Revision:	783
Committed:	2006-05-29T00:47:30-07:00 (19 years, 1 month ago) by douglas
File size:	1442 byte(s)
Log Message:	Meh!
#	Content
1	// Iconv ISO-8859-1 To UTF-8
2	//
3	// Douglas Thrift
4	//
5	// $Id$
6
7	#include <cxx/standard.hh>
8
9	#include <hop/function.hpp>
10
11	#include <iconv.h>
12
13	#include "Iso88591ToUtf8.hpp"
14
15	namespace
16	{
17
18	template <typename Char>
19	static _finline size_t Iconv_(::iconv_t conversion, const char *inBytes, size_t inBytesLeft, char *outBytes, size_t outBytesLeft, size_t ()(::iconv_t, Char , size_t , char *, size_t ))
20	{
21	return ::iconv(conversion, const_cast<Char **>(inBytes), inBytesLeft, outBytes, outBytesLeft);
22	}
23
24	#define Iconv_(conversion, inBytes, inBytesLeft, outBytes, outBytesLeft) Iconv_(conversion, inBytes, inBytesLeft, outBytes, outBytesLeft, &::iconv)
25
26	}
27
28	namespace Iconv
29	{
30
31	cse::String Iso88591ToUtf8(const ext::Buffer &iso88591)
32	{
33	::iconv_t conversion(reinterpret_cast<void *>(api::Posix::CheckError(reinterpret_cast<int>(::iconv_open("UTF-8", "ISO-8859-1")))));
34	ext::Buffer utf8(iso88591.GetSize());
35	const char *iso88591Bytes(iso88591.Begin());
36	char *utf8Bytes(utf8.Begin());
37	size_t code, iso88591BytesLeft(iso88591.GetSize()), utf8BytesLeft(utf8.GetSize());
38
39	while ((code = Iconv_(conversion, &iso88591Bytes, &iso88591BytesLeft, &utf8Bytes, &utf8BytesLeft)) == size_t(-1))
40	if (errno != E2BIG)
41	api::Posix::CheckError(code);
42	else
43	{
44	utf8.SetSize(utf8.GetSize() + (utf8BytesLeft += iso88591BytesLeft));
45
46	utf8Bytes = utf8.End() - utf8BytesLeft;
47	}
48
49	api::Posix::CheckError(::iconv_close(conversion));
50
51	return utf8;
52	}
53
54	}