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// $Id$
#include "ace/UTF8_Encoding_Converter.h"
#if defined (ACE_USES_WCHAR)
#include "ace/UTF16_Encoding_Converter.h"
#include "ace/UTF32_Encoding_Converter.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_Memory.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
ACE_UTF8_Encoding_Converter::ACE_UTF8_Encoding_Converter (void)
: native_ (0)
{
// Choose a converter for the ASCII or UTF-8 string to a wide character
// string which we will use in from_utf8. We have to make an
// assumption here about the encoding based on the size of ACE_TCHAR.
switch (sizeof (ACE_TCHAR))
{
case 4:
ACE_NEW(this->native_, ACE_UTF32_Encoding_Converter);
break;
case 2:
ACE_NEW(this->native_, ACE_UTF16_Encoding_Converter);
break;
}
}
ACE_UTF8_Encoding_Converter::~ACE_UTF8_Encoding_Converter (void)
{
delete native_;
}
ACE_UTF8_Encoding_Converter::Result
ACE_UTF8_Encoding_Converter::to_utf8 (const void* source,
size_t source_size,
ACE_Byte* target,
size_t target_size,
bool /*strict*/)
{
if (target_size >= source_size)
{
ACE_OS::memcpy (target, source, source_size);
return CONVERSION_OK;
}
return TARGET_EXHAUSTED;
}
ACE_UTF8_Encoding_Converter::Result
ACE_UTF8_Encoding_Converter::from_utf8 (const ACE_Byte* source,
size_t source_size,
void* target,
size_t target_size,
bool strict)
{
if (this->native_ != 0)
{
return this->native_->from_utf8(source, source_size,
target, target_size, strict);
}
ACE_TCHAR* targetStart = static_cast<ACE_TCHAR*> (target);
ACE_OS::strncpy (targetStart,
ACE_TEXT_CHAR_TO_TCHAR (
reinterpret_cast<const char*> (source)),
source_size);
targetStart[source_size] = 0;
return CONVERSION_OK;
}
ACE_UTF8_Encoding_Converter*
ACE_UTF8_Encoding_Converter::encoded (const ACE_Byte* source,
size_t source_size)
{
for(size_t i = 0; i < source_size; i++)
{
if (source[i] < 0x01 || source[i] > 0x7f)
return 0;
}
// All characters are "valid" ASCII
ACE_UTF8_Encoding_Converter* converter = 0;
ACE_NEW_RETURN (converter,
ACE_UTF8_Encoding_Converter,
0);
return converter;
}
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_USES_WCHAR */
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